LSE Lighting GPH620T5L/4P GPH620T5L/4 Ultraviolet UV Lamp Bulb 4-pin 29W 24.40" Brand: LSE Lighting Length: 24.40" - Watts: 29W Effective Hours Rating: 12,000hrs (Extra LiFE) - Quality Ultraviolet UV lighting by LSE Lighting Brand (New technology UV Lighting with Extra LiFE) Base Type: 4pins ONE END Bulb Type: T5 Style Quartz Glass - Bulb Type: Germicidal UV Tube Light