This UV disinfection lamp is made of quartz and glass material, with long lifespan, high transmittance and better sterilization effect. It can be widely used in sterilizers, air purifiers, aquariums, medical disinfection machines, etc. Feature - Color: White. - Material: Glass. - Size: 23.5 x 3 x 1.8 cm. - Power: 11W. - The choice of imported high-purity quartz tube, high ultraviolet transmittance, strong germicidal ability; - Built-in anti-interference capacitor, 110V/220V optional; - Built-in G23 universal lamp holder, plug and play, convenient and fast; - This ultraviolet sterilization lamp is widely used in disinfection, sterilization, deodorization, purification equipment, medical disinfection machines, air purifiers and aquarium disinfection etc. - Warm tip: Dear buyer, 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. Sincerely hope that you can understand! Thank you! Packing list 2 x UV light