5 Power LED PCB Series 1W/3W/5W Aluminum Heat Sink Board Base Montage Plate 

Suitable for 5x 1W or 2W or 3W or 5W Power LED
Dimensions: 158mm x 43mm
Thickness: 1.3mm
Material: Aluminum
LEDs Connection: 5 LEDs in Series, same as 20W LED in one chip