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Can LED light bulbs be a direct replacement for Metal-Halides?

Can LED light bulbs be a direct replacement for Metal-Halides?

(OP)
I'm trying to lower my company's energy usage and they have been pushing for LED lighting for a while now. The biggest improvements will be on the parking lot lights but that is a professional job. Right outside the front door we have a canopy with M90 100W MG lamps in a can light fixture. Can I simply replace these with LED bulbs? or is there some goofy starter mechanism/ballast that these MH lights operate on?

If its an easy replacement, can anybody recommend a good LED bulb?

Also I don't know what voltage this circuit is on. My supervisor thinks they are 277V though, and from my research it looks as though there are many lights that can operate between 100v and 277. I'm about to look through the buildings electrical drawings. (Not fully sure how to do this so there will be a learning curve!)

RE: Can LED light bulbs be a direct replacement for Metal-Halides?

If it's a commonly used bulb, there will almost certainly be an LED equivalent. One thing to watch out for, though, is form factor. LED bulbs, because of their required circuitry, will tend to be bulkier than incandescent bulbs, so tight quarters might be a problem for LED replacement bulbs.

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RE: Can LED light bulbs be a direct replacement for Metal-Halides?

Yes, there is a ballast in the MH fixture. If you find an LED lamp that says it's OK as a screw-in replacement, fine. If you don't (most likely) then you'll have to open the can and remove the ballast from the circuit.

Best to you,

Goober Dave

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