... bright semiconductor chip independence device packaging High-power LED as light source, luminous efficiency is more than 100Lm/W, much higher ... and 50% than energy saving lamp. 5. Green and cleanCold light source design, non-thermal radiation, pairs of eyes and skin ... .5'', 3'', 4'', 6'', 8'' can replace the traditional down light directly, unnecessary to cut new hole for the fitting.Specification ...