12W Aluminium based pcb LED 1.al base 1.6mm,copper 1oz 2. ... .diameter:90mm 4.TAIYO ink, HASL(no P 12W Aluminium based pcb LED1.al base 1.6mm,copper 1oz2.thermal conductivity ... Letter Height0.8mm20Letter Colorwhite, black, blue, yellow, red 12W Aluminium based pcb LED