4 layers PCB
FR4
1.6mm
1oz
Gold immersion
Green mask
White ledgend.
2 layers PCB
Fr4
1.6mm
1oz
Gold immersion
Green mask
White ledgend
Used for lighting manufacturing.
4 layers PCB
FR4
1.6mm
1oz
Gold Immersion
Red mask
White ledgend.
Aluminum PCB
1 layer
normal thermal conductivity
1.5mm
1oz
OSP
Black mask
Widely used in LED lighting manufacturing.
4 layers PCB
FR4
1.6mm
1oz
lead free HAL
BGA
Gold finger
Green mask
White ledgend.