This instructable will show you how to convert a metal halide architectural light, commonly used to illuminate gymnasiums, outdoor stairwells and parking structures, over to a more energy efficient and longer lasting induction lighting setup.
While yours may differ, I am demonstrating on a RAB brand metal halide lamp, converting it over to Philips brand induction components.
I will also take a moment to mention that you will be working with electricity and this work should be only attempted by a trained professional. Always when working with electricity practice basic safety precautions and before you preform your work, make sure the power is switched off at the circuit breaker.
Step 1: Remove outer lens
Remove the four screws holding the outer lens.
Remove the outer lens.
Step 2: Remove metal halide bulb
Simply unscrew the existing metal halide bulb. The bulb may be very hot! Please don't burn yourself.
Metal halide bulbs contain a high level of mercury, and they need to be disposed of accordingly.
Step 3: Remove top plate
Remove the four screws that hold the top plate. As you lift up the top plate, you will see three wires that connect to the underside of the top plate. Cut these wires and remove the top plate from the base housing.
Step 4: Remove bulb socket from top plate
We will be reusing the top plate, but the induction bulb uses a different socket so we can remove the metal halide bulb socket by depressing on the two spring clips.
Step 5: Remove internal components
We will not be re-using any of the internal components or wiring from the metal halide system so you can remove them now.
Should end up with a bare case that we can begin installing the induction components into.
Step 6: Prepare for installation
The induction setup only has three parts, a generator (the rectangular box), the induction lamp and a glass induction lamp cover. We will mount the generator box in the base housing and the induction lamp will mount in the same location as the original halide bulb socket. Then when we are all done, the glass lamp cover just screws onto the induction lamp.