RoHS 5W*1W Al PCB 1.al base 1.6mm,copper 1oz 2.thermal conductivity 1.5w/ ... mk 3.diameter:49.5mm 4 HASL RoHS 5W*1W Al ... PCB 1.al base 1.6mm,copper 1oz2.thermal conductivity 1.5w ... Height0.8mm20Letter Colorwhite, black, blue, yellow, red RoHS 5W*1W Al PCB