1. High brightness, low price 2. Good heat dissipation 3 COB LED Light source 4,CE&RoHS&EMC Certificate Model No. lux- ... DOH-5XColor Temp 3000-4200,4200-5500,5500-6000Led light ... stable quality & competitive price 2,Aluminium shell --- best material for heat dissipation --- keep lower light attenuation 3,Widely & generally used 4,High power ...