1000669 Ushio HPL-550/77X+ JS77V-550WX T6 Clear Halogen Lamp Ushio OEM 1000669 HPL-550/77X+ Halogen Stage Bulb Used in entertainment, TV, stage, and theater lighting (ETC Source Four fixtures or any fixture with TP22H socket) 550 Watts 77 Volts Single Ended Ceramic Base With Heatsink (HT/SNK) T6 Bulb Type 2000 Hours Rated Average Life (Long Life) 12160 Lumens 3050K Color Temperature 100 CRI 4-C8 Filament Clear Lamp Contains Mercury (Hg) 4.10 in (104.0 mm) Max Overall Length .748 in (19 mm) Bulb Diameter Other part numbers, 54604, HPL-550/77X+, JS77V-550WX Please Note: -Buyer pays PayPal. -Free domestic shipping is by USPS First Class Mail. -All orders placed by 3:00PM EST, ship same day Monday-Friday. -USPS tracking email will follow the evening of shipment. -International buyers, USPS First Class International can take up to 45 days to arrive. Faster options are available during checkout. -Import duties, taxes, and charges are not included in the item price or shipping cost. These charges are the buyer's responsibility. -Please check with your country's customs office to determine what these additional costs will be prior to bidding or buying.