POWER SUPPLY

Apparatus, methods and systems for providing power to light-emitting diode ("LED") light sources are provided. The apparatus may include a plurality of power output channels. Each of the power output channels may provide a current to a plurality of LED modules. Each of the LED modules may correspond to one of the power output channels. The apparatus may include a protection circuit. The protection circuit may receive a conditioned voltage. The protection circuit may use the conditioned voltage to feed to the power output channels an output current that, in total, has a power no greater than a predetermined power limit. The apparatus may include a voltage conditioning circuit. The voltage condition circuit may receive line voltage. the voltage condition circuit may condition the line voltage. The voltage conditioning circuit may provide the conditioned voltage to the protection circuit.