This is the 250w halide light bulb replacement. It is single-ended, with a GY9.5 Bipin Pre-focus base. It has 17,000LM and a 8,500K color temperature rating. This replacement bulb for Philips’ MSD 250 is a powerful and cost effective bulb for your stage and studio lighting needs. Like the Philips MSD 250, the ASD 250 is features the fantastic brightness, 8,500K color temperature, and 3,000 hour life needed to make this lamp a reliable lamp option. Save money while still providing your studio with fantastic lighting and check out the MSD 250 replacement bulb, the ASD 250 today.