Combo Package Compatible UV Bulb 602805 Sleeve 602732 and O-Rings Brand: LSE Lighting Wattage: 43W - SuperLife - 12,000hrs Length Approx: 15 1/2" (391mm) This combo kit by (LSE Lighting brand) is 100% compatible replacement for use with Trojan UVMAX C/D, C4/D4, DPLUS/D4 PLUS Systems. All products listed are compatible brand (LSE Lighting) UV products. We do not sell Trojan brand products. All Trojan brand names, trademarks and logos are property of Trojan.