So I got this light from work, it wAs for a job but I think 1 of the diodes burned out, now how would I go about testing the light? Obviously I can plug it in but looks like it's a small 220plug maybe ? I did some research an it says u can use either a reg 120 or the 220, now it also has one big ass heatsink, the whit circle that goes around it.. what would be the best way to go about combining this light with my mars 700, the 700 has about 1/4 of it burned out.. it's one whole corner here's pics of it