it is simple..
Here are the 4 steps:
1.Get yourself a desktop computer 110 power cord.
2.Cut the end off that goes into the computer power supply, exposing about 1/4 inch of each of the 3 wires.
3.Open the light fixture, the wires should be white,black,green..
4.attach each matching color together with electrical merettes, electrical tape them together afterwards for extra safety.
your done.. you have just wired your frst hps grow light. and you are no longer a slave to the ever so yielding cfl computer grow.
Peace and Happy Growing