Usage Tips:Aquarium UV LightFeature- Color: White.- Material: Glass.- Size: 23.5 x 3 x 1.8 cm.- Power: 11W.- The selection of imported high purity quartz tube, high ultraviolet transmittance, strong bactericidal ability;- Built-in anti-interference capacitor, 110V/220V optional;- Built-in G23 universal lamp holder, plug and play, convenient and quick;- This ultraviolet sterilization lamp is widely used in disinfection, sterilization, deodorization, purification equipment, medical disinfection machine, air purifier and aquarium disinfection, etc.- Warm Tip: Due to lighting effect, monitor's brightness, manual measurement, etc., there could be some slight differences in the color and size between the photo and the actual item. Package list: 2 x UV Light