LSE Lighting GPH212T5VH/4 Ozone Producing UV Lamp GPH212T5L VH 4pin Single-Ended Brand: LSE Lighting Wattage: 10W Base Type: T5 4pin Base (4pins on ONE END) Length: 212mm (8 1/2") Type: Ozone Generating UV Lamp; Glass Type: Quartz Glass Tube