Best Standard UV Bulbs of 2026

The Pisces 9W UV Bulb is an essential component for pond filters and UV units. This 9-watt ultra-violet lamp effectively helps maintain water clarity and hygiene, ensuring a healthy environment for your pond's inhabitants. It is recommended to replace the bulb every 12 months to guarantee optimal performance, providing you with peace of mind. With a length of 164mm, it fits easily into compatible systems, making your maintenance routine straightforward and hassle-free.

The Pisces 11w UV Bulb is a reliable choice for maintaining your pond's water quality. It should be replaced every 12 months, ensuring optimal performance. Measuring 231mm, it’s essential to check your existing bulb size before purchasing, as some units may differ. This 11 Watt PLS bulb is ideal for pond filters and UV units, providing effective UV treatment. Please note, it does not fit the Hozelock EasyClear 7500 model, so be sure to verify compatibility.

The EgBert T5 Lamp is designed to provide effective disinfection using UV technology. Made from durable glass, it ensures longevity while being lightweight. With wattage options of 4W, 6W, and 8W, you can easily choose the best power level for your needs, making it versatile for various applications. The lamp's lengths of 148mm, 225mm, and 295mm allow for easy integration into different settings, providing you with convenient sterilisation solutions wherever required.

The Pisces 25w UV Bulb is designed for pond filters, making it an excellent choice for maintaining clean and clear water. Each bulb is 25 watts and 435mm long, fitting most standard manufacturers, including Yamitsu and TMC. The new slim line tube design enhances energy efficiency, which is beneficial for reducing your energy bills. Additionally, being environmentally friendly means you can enjoy a healthier pond ecosystem while reducing your carbon footprint.

The Pisces 18W UV Bulb is designed to enhance the clarity of your pond or aquarium water. With its 215mm length and 4-pin base, it easily fits into most pond filters and UV systems. Made from durable materials, this bulb effectively combats green algae, ensuring your water remains clear. When you replace an old or inefficient bulb with a new one, you can significantly boost the performance of your filtration system, providing you with a healthier aquatic environment.

The DuraBulb UV Note Checkers are ideal for ensuring the authenticity of your banknotes. These 4W UV bulbs, measuring 135mm (excluding pins), are specifically designed as replacements for various UV note checkers. With a peak wavelength of 365nm, they effectively illuminate the UV marks on both polymer and paper banknotes, making it easier for you to spot counterfeits. Their long-lasting design guarantees reliability, ensuring you can check notes with confidence over time.

The Pisces 9W PLS Bulbs come as a twin pack, offering you two ultra-violet lamps that are perfect for pond filters and UV units. With 9 watts of power, these bulbs help maintain clear and healthy water by reducing harmful bacteria and algae growth. Their PLS design ensures effective UV output, giving you reliable performance. These bulbs are easy to replace, helping you keep your pond environment clean and inviting throughout the year.