How to Install a Metal Halide Lamp
- 1). Establish where the lamp will be placed. Be sure that there is a location to screw in anchor hooks. The best place to hang light fixtures from is part of a wooden framework capable of holding 30 lbs. If the ballast is separate from the lamp, a place must be determined for it as well. Be sure that there will be adequate air flow to the ballast as it gets very hot.
- 2). Screw hooks into the frame work to hang the fixture from. Use as many hooks as will be necessary to hang the fixture. Most fixtures will need only one or two hooks. Be sure that these hooks are fastened securely.
- 3). Hang a chain from each hook and attach it to the light fixture. By using a chain, the light can be moved up or down easily.
- 4). Run the cord from the fixture using more hooks to hold it up if needed. If the ballast is attached to the light fixture, simply screw in the bulb and plug it into your wall outlet. If the ballast is separate from the fixture, run the cord to the ballast and plug it in.
- 5). Place the ballast in a location with lots of air flow to keep it cool. After plugging in the fixture to the ballast, screw in the bulb, then plug the ballast into the wall outlet.
Source...