Diamond Lamp for OPTOMA HD20 Projector with a Osram bulb inside housing Brand New P-VIP Diamond Lamp - Serial Number beginning with Q8EG Q8HW for a Projector (230 watt) 1 Lamp Supplied 100% compatibility with the following OPTOMA projector model HD20 This projector lamp is user friendly and user installable by following the documentation provided with the original device Diamond Lamps are totally committed to quality and its lamps have a good reputation for their reliability. Should the products fail in use, a comprehensive 365 day manufacturers warranty is provided against any defects in material or workmanship. Make sure you buy your Diamond Lamp from an approved Diamond reseller to guarantee you receive a top quality product at a competitive price and not a lower standard copy lamp which uses non-manufacturers original bulbs