LSE Lighting Combo Package UV Bulb and Sleeve ATS-450 ATS-476D Brand: LSE Lighting Combo Package Kit: Includes the following: 1 UV Bulb and 1 Quartz Sleeve Base Type: 4pin (4pins on ONE END), Sleeve Type: Quartz Glass This combo package kit by (LSE Lighting) brand is 100% compatible replacement for use with ATS-450 ATS-476D. All quartz sleeves and uv bulbs listed are compatible brand (LSE Lighting) UV products. We do not sell ATS UV brand quartz sleeves/bulbs. All ATS UV brand names, trademarks and logos are property of ATS.