LSE Lighting GPH436T5L/4P GPH436T5L/4 Ultraviolet UV Lamp Bulb 4-pin Base 17" Brand: LSE Lighting Length: 17.17" - Base Type: 4pins ONE END Effective Hours Rating: 12,000hrs (Extra LiFE) - Quality Ultraviolet UV lighting by LSE Lighting Brand (New technology UV Lighting with Extra LiFE) Watts: 20W Bulb Type: T5 Style Quartz Glass - Bulb Type: Germicidal UV Tube Light