Hey, I've been looking for a thread kind of like this... I actually have a 175 watt metal halide floodlight. It has the normal green ground and black and white outputs.. but it doesn't rig up to a 120v cord properly... This was just an extension cord i used and spliced the end... I also tried using a plug i bought from the hardware store... and no light, only a little ballast hum... But no light at all in the bulb (its a brand new bulb... and light)
I can get the instruction manual off the site... Its scored for 277 but on the website and the guy i bought it from he said u can use the 120v application.
I know 277v wiring is for warehouses, because of the way energy transfer through's or some bullshit, but i only have 120v here.
http://www.daybrite.com/Instruction_Sheets/db_hidin/87625370.pdf
If you need to know more about this lite... heres the manufactures' website for the light
Day-Brite HID Products
Thanks.