GPH739T5L/4P GPH739T5L/4 Ultraviolet UV Lamp Bulb 4-pin Base 29" Brand: LSE Lighting Base Type: 4pins ONE END; Length: 29" Effective Hours Rating: 12,000hrs (Extra LiFE) - Quality Ultraviolet UV lighting by LSE Lighting Brand (New technology UV Lighting with Extra LiFE) Watts: 40W Bulb Type: T5 Style Quartz Glass - Bulb Type: Germicidal UV Tube Light