This Philips G4 T5 UVC 4 Watt bulb is a must-have for maintaining the cleanliness of your aquarium, swimming pools, whirlpools, and ponds. It emits UV light that helps to sterilize and ionize the water, making it safe for your aquatic plants and animals.

With a brand name like Philips, you can trust that this replacement bulb is of high quality and energy-efficient with only 4W power consumption. It comes included with the UV lamp for easy installation and is suitable for use with standard test/treatment parameters for algae control. Upgrade your water feature with the G4 T5 UVC bulb.

This is for 1 bulb.