Best Battery Smart Thermostats of 2026

Corey Phillips Avatar
Corey Phillips
Last Updated: 11 Feb 2026

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Battery smart thermostats are innovative devices designed to regulate the temperature of your home while saving you money on energy bills. These thermostats are equipped with advanced sensors that can detect changes in temperature and adjust accordingly, which means you won't have to worry about manually adjusting your thermostat. Additionally, battery smart thermostats can be programmed to turn off when you're not at home, saving you even more money. These devices are easy to install and use, making them an excellent choice for anyone looking to reduce their energy consumption and lower their carbon footprint.

At a Glance: Our Top Picks

Beok Smart Thermostat for Combi Boiler, Wifi thermostat 2-Wire for Boiler Heating Compatible with Tuya app, Programmable Digital with Voice Control, Battery-powered Surface Mount White Cover #TOP 1
Beok Smart Thermostat for Combi Boiler, Wifi thermostat 2-Wire for Boiler Heating Compatible with Tuya app, Programmable Digital with Voice Control, Battery-powered Surface Mount White
ftb score rating icon 9.8
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Beok Smart Thermostat for Combi Boiler, Wifi thermostat 2-Wire for Boiler Heating Compatible with Tuya app, Programmable Digital with Voice Control, Battery-powered Surface Mount White thumbnail
Beok Smart Thermostat for Combi Boiler, Wifi thermostat 2-Wire for Boiler Heating Compatible with Tuya app, Programmable Digital with Voice Control, Battery-powered Surface Mount White
#TOP1
9.8
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MOES ZigBee Smart Thermostat for Gas Boiler Floor Heating - Battery Powered Cover #TOP 2
MOES ZigBee Smart Thermostat for Gas Boiler Floor Heating - Battery Powered
ftb score rating icon 9.7
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MOES ZigBee Smart Thermostat for Gas Boiler Floor Heating - Battery Powered thumbnail
MOES ZigBee Smart Thermostat for Gas Boiler Floor Heating - Battery Powered
#TOP2
9.7
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Smart Thermostat for Combi Boiler 2 Wire, Digital Room Thermostat Wired Wifi Thermostat Programmable Heating Controller Wall, Battery Powered Cover #TOP 3
Smart Thermostat for Combi Boiler 2 Wire, Digital Room Thermostat Wired Wifi Thermostat Programmable Heating Controller Wall, Battery Powered
ftb score rating icon 9.5
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Smart Thermostat for Combi Boiler 2 Wire, Digital Room Thermostat Wired Wifi Thermostat Programmable Heating Controller Wall, Battery Powered thumbnail
Smart Thermostat for Combi Boiler 2 Wire, Digital Room Thermostat Wired Wifi Thermostat Programmable Heating Controller Wall, Battery Powered
#TOP3
9.5
Read Review

Top 10 Battery Smart Thermostats

#TOP 1

Beok Smart Thermostat for Combi Boiler, Wifi thermostat 2-Wire for Boiler Heating Compatible with Tuya app, Programmable Digital with Voice Control, Battery-powered Surface Mount White

BEOK CONTROLS
WR-03
White
Beok Smart Thermostat for Combi Boiler, Wifi thermostat 2-Wire for Boiler Heating Compatible with Tuya app, Programmable Digital with Voice Control, Battery-powered Surface Mount White Cover
Beok Smart Thermostat for Combi Boiler, Wifi thermostat 2-Wire for Boiler Heating Compatible with Tuya app, Programmable Digital with Voice Control, Battery-powered Surface Mount White
ftb score rating icon 9.8
FTB Score
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Features
[Voice Control] The Thermostat Is Compatible With Alexa And Google Assistant. You Can Turn The Thermostat On And Off At Will With Your Voice Or From Your Mobile Phone. Even On Nights When The Lights Are Off, You Can Ask Alexa What The Temperature Is In The House Or Check It On Your Mobile Phone. This Way, You Can Find Out What The Temperature Is Now And Change It As You Wish Without Looking At The Thermostat.
[Battery-Powered WiFi Thermostat] . WiFi Thermostat Requires Only 3 X 1.5V Batteries (AA Type). Relay With Dry Contact Switch, i.e. Normally Open/closed And Common. For 2-Wire Connections. WiFi Thermostats That Can Be Controlled And Programmed Via Tuya Or Smart Life. Digital Thermostat Is Only Compatible With 2.4Ghz WiFi.
[Thermostat Specifications] Calibration 0.5℃ (factory Setting 1℃), Temperature Differential ±9.9℃, Adjustable Temperature Range 5-35℃, 3A.
[Low Battery Warning] When The Thermostat's Battery Level Falls Below 20%, The Battery Icon On The Screen Will Start Flashing, Reminding The User To Replace The Battery With A New One In Time So As Not To Affect Its Use.
[Daily Programming] The Wifi Thermostat Can Be Programmed And Adjusted Through The TUYA Or SMART Application. You Can Set Up A Daily Schedule, Turn On And Adjust The Temperature When You Are At Home, And Automatically Turn Off When You Leave. You Can Add Up To 6 Time Slots Per Day. In Addition, You Can Set Up Independent 24-Hour Schedules For Different Rooms.
#TOP 2

MOES ZigBee Smart Thermostat for Gas Boiler Floor Heating - Battery Powered

MOES
ZHT-S03-GC-BK-A-MS
Black
ZigBee ( low-power)
MOES ZigBee Smart Thermostat for Gas Boiler Floor Heating - Battery Powered Cover
MOES ZigBee Smart Thermostat for Gas Boiler Floor Heating - Battery Powered, App Remote Control, Voice Control Compatible with Alexa Google Home, 300-Day Battery Life, Hub Required - Black
ftb score rating icon 9.7
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Features
Multiple Control Options With ZigBee Connectivity - Control Your Heating System Through Smartphone App, Voice Commands, Or Manual Operation On The Device Display. The ZigBee Protocol Ensures Reliable Wireless Communication And Seamless Integration With Your Tuya Smart Home Ecosystem When Paired With A MOES ZigBee Gateway Hub
Easy Upgrade From Traditional Thermostats - Transform Your Existing Gas Boiler Floor Heating System Into A Smart Home Solution With This Direct Replacement Thermostat. The Simple Two-Wire Connection Makes It Perfect For Upgrading Older Thermostat Systems Without Complex Rewiring, Maintaining Compatibility With Your Current Heating Infrastructure While Adding Intelligent Control Capabilities
Remote Access And Smart Home Integration - Enjoy Complete Remote Control Of Your Floor Heating System From Anywhere Using Your Smartphone. Set Heating Schedules, Adjust Temperatures On-The-Go, And Integrate With Other Tuya ZigBee Smart Devices To Create Automated Home Comfort Scenarios That Optimize Energy Efficiency And Convenience
Long-Lasting Battery Performance With Smart Monitoring - Powered By 3 AA Batteries Providing An Impressive 300-Day Average Runtime, This Thermostat Offers Reliable Operation Without Frequent Maintenance. Monitor Battery Levels Directly On The Thermostat Screen Or Through The Mobile App, Which Sends Low Battery Notifications To Ensure Uninterrupted Heating Control
Convenient Battery Replacement Without Setting Loss - Hot-Swappable Battery Design Allows You To Replace Batteries Anytime While Preserving All Your Programmed Settings And Schedules. This Ensures Continuous Operation And Eliminates The Need To Reconfigure Your Heating Preferences After Battery Changes
#TOP 3

Smart Thermostat for Combi Boiler 2 Wire, Digital Room Thermostat Wired Wifi Thermostat Programmable Heating Controller Wall, Battery Powered

BEOK CONTROLS
SF20251014B0FJ1GQZTW_B0FJ1GQZTW_5_Xmwy93
White Screen
Wired Thermostat
Smart Thermostat for Combi Boiler 2 Wire, Digital Room Thermostat Wired Wifi Thermostat Programmable Heating Controller Wall, Battery Powered Cover
Smart Thermostat for Combi Boiler 2 Wire, Digital Room Thermostat Wired Wifi Thermostat Programmable Heating Controller Wall, Battery Powered Compatible with Alexa and Google Assistant White Screen
ftb score rating icon 9.5
FTB Score
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Features
[WiFi Function] Control The Room Thermostat Anytime, Anywhere Via The "Tuya" Or "Smart Life" Smartphone App. Voice Control: Operate Your Smart Thermostat With Assistants – Alexa Or Google Assistant; 2.4GHz WiFi Network Required.
[Boiler Thermostat] Smart Thermostat Is Suitable For Hot Water Supply Systems, Such As Gas Boilers, And Controls The Boiler's On/off Operation By Temperature Setting.
[Package List] 1 X Gas Boiler Thermostat; 1 X USB-C Cable；1 X User Manual；2 X Screws. Additional Features‌: Child Lock, Shutdown Memory, Frost Protection, Temperature Compensation, Temperature Hysteresis, And Factory Settings Etc.
[Daily Programming] Set A Daily Heating Schedule Based On Your Habits, Allowing Up To 6 Different Temperatures Per Day For A More Comfortable And Energy-Efficient Lifestyle.
[Battery Operated] The Wifi Thermostat Is Powered By 3 AA Batteries (not Included) And Is Extremely Easy To Use. Wired Thermostat Wall Mounted Installation, Size: 8.6 X 8.6 X 2.0 (CM)
#TOP 4

MOES ZigBee Smart Thermostat for Gas Boiler Floor Heating - Battery Powered

MOES
ZHT-S03-GC-WH-A-MS
White
ZigBee ( low-power)
MOES ZigBee Smart Thermostat for Gas Boiler Floor Heating - Battery Powered Cover
MOES ZigBee Smart Thermostat for Gas Boiler Floor Heating - Battery Powered, App Remote Control, Voice Control Compatible with Alexa Google Home, 300-Day Battery Life, Hub Required - White
ftb score rating icon 9.3
FTB Score
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Features
Multiple Control Options With ZigBee Connectivity - Control Your Heating System Through Smartphone App, Voice Commands, Or Manual Operation On The Device Display. The ZigBee Protocol Ensures Reliable Wireless Communication And Seamless Integration With Your Tuya Smart Home Ecosystem When Paired With A MOES ZigBee Gateway Hub
Easy Upgrade From Traditional Thermostats - Transform Your Existing Gas Boiler Floor Heating System Into A Smart Home Solution With This Direct Replacement Thermostat. The Simple Two-Wire Connection Makes It Perfect For Upgrading Older Thermostat Systems Without Complex Rewiring, Maintaining Compatibility With Your Current Heating Infrastructure While Adding Intelligent Control Capabilities
Remote Access And Smart Home Integration - Enjoy Complete Remote Control Of Your Floor Heating System From Anywhere Using Your Smartphone. Set Heating Schedules, Adjust Temperatures On-The-Go, And Integrate With Other Tuya ZigBee Smart Devices To Create Automated Home Comfort Scenarios That Optimize Energy Efficiency And Convenience
Long-Lasting Battery Performance With Smart Monitoring - Powered By 3 AA Batteries Providing An Impressive 300-Day Average Runtime, This Thermostat Offers Reliable Operation Without Frequent Maintenance. Monitor Battery Levels Directly On The Thermostat Screen Or Through The Mobile App, Which Sends Low Battery Notifications To Ensure Uninterrupted Heating Control
Convenient Battery Replacement Without Setting Loss - Hot-Swappable Battery Design Allows You To Replace Batteries Anytime While Preserving All Your Programmed Settings And Schedules. This Ensures Continuous Operation And Eliminates The Need To Reconfigure Your Heating Preferences After Battery Changes
#TOP 5

WiFi thermostat for Boiler Heating Smart Thermostat for Combi Boiler Compatible with Tuya app, 2-Wire Programmable Digital Wireless Thermostat with Voice Control, Battery-powered R9V

BEOK CONTROLS
a6c3fa6a-72bb-42ae-bf1a-1838d4b154c5
White
WiFi thermostat for Boiler Heating Smart Thermostat for Combi Boiler Compatible with Tuya app, 2-Wire Programmable Digital Wireless Thermostat with Voice Control, Battery-powered R9V Cover
WiFi thermostat for Boiler Heating Smart Thermostat for Combi Boiler Compatible with Tuya app, 2-Wire Programmable Digital Wireless Thermostat with Voice Control, Battery-powered R9V
ftb score rating icon 9.2
FTB Score
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Features
[Voice Control] The Thermostat Is Compatible With Alexa And Google Assistant. You Can Turn The Thermostat On And Off At Will With Your Voice Or From Your Mobile Phone. Even On Nights When The Lights Are Off, You Can Ask Alexa What The Temperature Is In The House Or Check It On Your Mobile Phone. This Way, You Can Find Out What The Temperature Is Now And Change It As You Wish Without Looking At The Thermostat.
[Battery-Powered WiFi Thermostat] . WiFi Thermostat Requires Only 3 X 1.5V Batteries (AA Type). Relay With Dry Contact Switch, i.e. Normally Open/closed And Common. For 2-Wire Connections. WiFi Thermostats That Can Be Controlled And Programmed Via Tuya Or Smart Life. Digital Thermostat Is Only Compatible With 2.4Ghz WiFi.
[Thermostat Specifications] Calibration 0.5℃ (factory Setting 1℃), Temperature Differential ±9.9℃, Adjustable Temperature Range 5-35℃, 3A.
[Smart Programming] The Wifi Thermostat Can Be Programmed And Adjusted Through The TUYA Or SMART Application. You Can Set Up A Daily Schedule, Turn On And Adjust The Temperature When You Are At Home, And Automatically Turn Off When You Leave. You Can Add Up To 6 Time Slots Per Day. In Addition, You Can Set Up Independent 24-Hour Schedules For Different Rooms.
[Low Battery Warning] When The Thermostat's Battery Level Falls Below 20%, The Battery Icon On The Screen Will Start Flashing, Reminding The User To Replace The Battery With A New One In Time So As Not To Affect Its Use.
#TOP 6

MOES WiFi Smart Thermostat for Gas Boiler Floor Heating - Battery Powered

MOES
WHT-S03-GC-WH-A-EU
White
WiFi 2.4GHz
MOES WiFi Smart Thermostat for Gas Boiler Floor Heating - Battery Powered Cover
MOES WiFi Smart Thermostat for Gas Boiler Floor Heating - Battery Powered, App Remote Control, Voice Control Compatible with Alexa Google Home, 300-Day Battery Life, No Hub Required - White
ftb score rating icon 9.0
FTB Score
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Features
Multiple Control Options With WiFi Connectivity - Control Your Heating System Through Smartphone App, Voice Commands, Or Manual Operation On The Device Display. The Built-In WiFi Connectivity Connects Directly To Your Home Network Without Requiring Additional Hubs Or Gateways, Making Setup Simple And Cost-Effective For Instant Smart Home Integration
Easy Upgrade From Traditional Thermostats - Transform Your Existing Gas Boiler Floor Heating System Into A Smart Home Solution With This Direct Replacement Thermostat. The Simple Two-Wire Connection Makes It Perfect For Upgrading Older Thermostat Systems Without Complex Rewiring, Maintaining Compatibility With Your Current Heating Infrastructure While Adding Intelligent Control Capabilities
Remote Access And Smart Home Integration - Enjoy Complete Remote Control Of Your Floor Heating System From Anywhere Using Your Smartphone. Set Heating Schedules, Adjust Temperatures On-The-Go, And Integrate With Other Tuya WiFi Smart Devices To Create Automated Home Comfort Scenarios That Optimize Energy Efficiency And Convenience
Long-Lasting Battery Performance With Smart Monitoring - Powered By 3 AA Batteries Providing An Impressive 300-Day Average Runtime, This Thermostat Offers Reliable Operation Without Frequent Maintenance. Monitor Battery Levels Directly On The Thermostat Screen Or Through The Mobile App, Which Sends Low Battery Notifications To Ensure Uninterrupted Heating Control
Convenient Battery Replacement Without Setting Loss - Hot-Swappable Battery Design Allows You To Replace Batteries Anytime While Preserving All Your Programmed Settings And Schedules. This Ensures Continuous Operation And Eliminates The Need To Reconfigure Your Heating Preferences After Battery Changes
#TOP 7

Smart Thermostat for Combi Boiler 2 Wire, Digital Room Thermostat Wired Wifi Thermostat Programmable Heating Controller Wall, Battery Powered

BEOK CONTROLS
SF20250921B0FHWDBYTF
Black Screen
Wired Thermostat
Smart Thermostat for Combi Boiler 2 Wire, Digital Room Thermostat Wired Wifi Thermostat Programmable Heating Controller Wall, Battery Powered Cover
Smart Thermostat for Combi Boiler 2 Wire, Digital Room Thermostat Wired Wifi Thermostat Programmable Heating Controller Wall, Battery Powered Compatible with Alexa and Google Assistant Black Screen
ftb score rating icon 9.0
FTB Score
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Features
[WiFi Function] Control The Room Thermostat Anytime, Anywhere Via The "Tuya" Or "Smart Life" Smartphone App. Voice Control: Operate Your Smart Thermostat With Assistants – Alexa Or Google Assistant; 2.4GHz WiFi Network Required.
[Boiler Thermostat] Smart Thermostat Is Suitable For Hot Water Supply Systems, Such As Gas Boilers, And Controls The Boiler's On/off Operation By Temperature Setting.
[Package List] 1 X Gas Boiler Thermostat; 1 X USB-C Cable；1 X User Manual；2 X Screws. Additional Features‌: Child Lock, Shutdown Memory, Frost Protection, Temperature Compensation, Temperature Hysteresis, And Factory Settings Etc.
[Daily Programming] Set A Daily Heating Schedule Based On Your Habits, Allowing Up To 6 Different Temperatures Per Day For A More Comfortable And Energy-Efficient Lifestyle.
[Battery Operated] The Wifi Thermostat Is Powered By 3 AA Batteries (not Included) And Is Extremely Easy To Use. Wired Thermostat Wall Mounted Installation, Size: 8.6 X 8.6 X 2.0 (CM)
#TOP 8 Best Smart Thermostat for Heat Pump

Honeywell Home T3 Wired Smart Thermostat Kit

Honeywell Home
T3C110AEU
White
Honeywell Home T3 Wired Smart Thermostat Kit Cover
Honeywell Home T3 Wired Smart Thermostat Kit - Wall Thermostat with Flexible Programming & ECO Mode - Battery Operated, Compatible for Combi Boilers & Heat Pumps - CM907 Replacement (T3C110AEU)
ftb score rating icon 9.0
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The Honeywell T3 Thermostat offers impressive versatility and compatibility, making it suitable for various heating systems like combi boilers and heat pumps. With intuitive 7-day scheduling, you can programme up to six time slots per day, ensuring your home stays comfortable when you need it. Its modern, minimalistic design features a large backlit screen for easy operation and quick access to your settings. Additionally, smart home integration allows you to control your heating effortlessly, enhancing your overall convenience and comfort.

What We Like
Versatile compatibility with heating systems
Flexible 7-day scheduling
Modern and easy-to-use design
Seamless smart home integration
#TOP 9

WiFi Thermostat For Gas Boilers, Programmable Heating And Cooling System With Compatibility, App Remote Control, Voice Enabled, USB Or Battery Powered

Gdfnmogo
7E5230BOC40F130V58S5
As Picture Show
WiFi Thermostat For Gas Boilers, Programmable Heating And Cooling System With Compatibility, App Remote Control, Voice Enabled, USB Or Battery Powered Cover
WiFi Thermostat For Gas Boilers, Programmable Heating And Cooling System With Compatibility, App Remote Control, Voice Enabled, USB Or Battery Powered
ftb score rating icon 8.9
FTB Score
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Features
[VOICE ACTIVATION] Compatible With ForALEXA And For Alice, Adjust Settings Effortlessly Using Voice Commands For A Hands-Free Experience.
[SEASONAL ADAPTABILITY] Enjoy Year-Round Comfort With The Ability To Switch Between Heating And Cooling Modes, Your Home Is Always At The Perfect Temperature Regardless Of The Season.
[FAMILY SHARING] Easily Share Control With Family Members Through The Forand ForLIFE App, Letting Everyone Manage Their Preferred Temperature Settings.
[CUSTOMIZABLE SCHEDULING] Program Your Thermostat For Up To 7 Days, Allowing You To Set Specific Temperatures For Different Times Each Day To Match Your Lifestyle.
#TOP 10

Dual Power For Tuya WiFi Thermostat Battery Operated

ZYWUOY
QVEG41TOFXZ809YWU61Z5H09AETUOI
as picture show
Dual Power For Tuya WiFi Thermostat Battery Operated Cover
Dual Power For Tuya WiFi Thermostat Battery Operated, Programmable Smart Thermostat With Heating And Cooling Functions For Gas Boilers
ftb score rating icon 8.8
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Features
[Heating & Cooling Flexibility] Effortlessly Switch Between Heating And Cooling Modes To Maintain Year-Round Comfort. The Thermostat Supports A Wide Temperature Range (5-60°C) And Precise Adjustments Down To 0.5°C, Fitting Seasonal Needs.
[All-Inclusive Kit] Includes 1 Thermostat, 1 Charging Cable, And 2 Screws For Quick Setup. Dual Power Supply Supports Either AAA Batteries Or USB Cable, Offering Installation Flexibility For Any Home With Gas Boilers.
[Full App & Voice Control] Easily Manage Your Home Climate Remotely With For TUYA Or For SMART LIFE App, Or Enjoy Hands-Free Adjustments Through Or Alice For Maximum Convenience. Family Sharing Ensures Everyone Controls Home Comfort.
[Enhanced Safety & Smart Features] Features Power-Off Memory, Child Lock, Night Mode For Distraction-Free Sleep, And Frost Protection For Added Peace Of Mind. PLEASE REFER TO YOUR OWN SIZE CHART IN THE PRODUCT IMAGES, NOT AMAZON'S.
[Customizable Scheduling] Set Up To 7 Days Of Personalized Schedules With 6 Time Periods Per Day. Create A Tailored Heating Or Cooling Plan That Perfectly Aligns With Your Daily Routines For Energy Savings And Comfort.
Buying Guide Image

Frequently Asked Questions (FAQs)

1. Does Honeywell smart thermostat have a battery?

This wireless thermostat uses 2 AA batteries that have a battery life of around two years. Switch your thermostat off. Gently pull the cover plate to separate it from the base plate. Replace the AA batteries with new ones.

2. Are home thermostats battery operated?

Yes, they do. Batteries in thermostats are more than just a power source. They act as energy storage and a backup source to retain programmed schedules in case of power outages. Therefore, even today the 24-volt c-wired digital thermostats also have a battery compartment.

3. What are the best batteries for a thermostat?

The most common types of batteries you'll find in thermostats are AA, AAA alkaline batteries, or 3V disc-style lithium batteries. These batteries help to retain thermostat programming and stop the HVAC system from simple powering in the event of a power outage.

Editor's Notes

During our battery smart thermostat research, we found 153 battery smart thermostat products and shortlisted 10 quality products. We collected and analyzed 2,952 customer reviews through our big data system to write the battery smart thermostats list. We found that most customers choose battery smart thermostats with an average price of £20.00.

The battery smart thermostats are available for purchase. We have researched hundreds of brands and picked the top brands of battery smart thermostats, including BEOK CONTROLS, MOES, Honeywell Home, Gdfnmogo, ZYWUOY.

Written by
Corey Phillips Avatar
Corey Phillips

Corey Philips is an electrician and lighting expert. He graduated from the University of Birmingham in 2012 with a Bachelor's degree in electrical and electronics engineering. Corey is a specialist contractor in lights. He sells and installs and recommends lights and lamp sheds, and other lights accessories. Aside from that, Corey is vast in installing and maintaining electrical appliances like air conditioners, water heaters, and the likes.