... LED Light source 4,CE&RoHS&EMC Certificate Model No. lux-DOH-7XColor Temp 3000-4200,4200-5500,5500-6000Led light ... where in the microchip or die is directly mounted on and electrically interconnected to its final circuit board, instead of ... stable quality & competitive price 2,Aluminium shell --- best material for heat dissipation --- keep lower light attenuation 3,Widely & generally used 4,High power ...