Elation Design Spot 250 Pro 250W Bulb for Moving Head 250W GY-9.5 MSD 250/2 Average Life: 2000 Hours , Color Temperature: 8500 Kelvin, Base: GY9.5 2-Pin Prefocus HID bulbs put out around 3-5 times greater output (lumens per watt) than traditional halogen bulbs Used in Entertainment & Effect, Architectural Lighting, Stage Theater Lighting Applications Highest Quality Product for a Third of the Cost!