Megaman® Clusterlite® High Power Compact Fluorescent Lamps 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 life Universal burning position for base-up, base down or horizontal operation Instant restart capability with rapid start-up time: 150 seconds to reach 80% light output at 25°C Cluster-type lamp tube design allows continuous operation upon partial failure of lamp tubes Widely applicable for use in both enclosed and open luminaires 注 When retrofitting lamps with the 200 W (678-4603 紧凑型荧光灯，Retro-fit