GES/E40 CFL Bulb, 200 W, 4000K, Cool White Colour Tone

High power Megaman Clusterlite lamps, designed to replace Mercury or Metal Halide lamps giving longer life and lower energy consumption. Can also replace SON lamps to give a whiter light.

Engineered with patented cooling-tube to ensure over 75% maintenance of lumen output throughout operating lifeUniversal burning position for base-up, base down or horizontal operationInstant restart capability with rapid start-up time: 150 seconds to reach 80% light output at 25°CCluster-type lamp tube design allows continuous operation upon partial failure of lamp tubesWidely applicable for use in both enclosed and open luminaires

When retrofitting lamps with the 200 W (678-4603) and 320 W (678-4606) versions, the existing ballast must be replaced with the dedicated 200W (678-4600) or 320W (678-4619) ballast and bypassed for other lamps (60W to 100W inclusive).