Patent ID: 8648993

Claim:
An LED illumination assembly comprising: a single-conducting-layer PCB having oppositely facing front and rear surfaces; a first group of LEDs mounted on the front surface of the PCB and connected in both parallel and series with one another by the single conduction layer; a second group of LEDs mounted on the front surface of the PCB and connected in both parallel and series with one another by the single conduction layer, where the second group is also connected in parallel to the first group by the single conduction layer; a positive conduction line on the front surface of the PCB and connecting to the first and second groups, where the positive conduction line is defined by the single conduction layer; a negative conduction line on the front surface of the PCB and connecting to the first and second groups, where the negative conduction line is defined by the single conduction layer; a constricted convection plate positioned behind the rear surface of the PCB, the space between the constricted convection plate and the rear surface of the PCB defining a cooling channel; and a fan positioned to force cooling air through the channel.