Lumalier UV Air 18 Watt UV Compatible Bulb for CM-218, HW-218 18W, 2G11 UV Lamp
You are purchasing one Lumalier UV Air 18 Watt UV Compatible Bulb for CM-218. VM-818, 18W, 2G11 UV Lamp. Base: 2G11. The compact size of bulb allows for a small system design and design flexibility.