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CMH Refit
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Testing out a refit of my incandescent gumball to 39w CMH. It seems to work fairly well but the 39w CMH has fewer lumens than the 200w incandescent it replaced. I suppose 50w CMH would be a better choice but I don't have a 50w MH ballast that fits in the head. To be honest it looks pretty good with a 39w CMH. I suppose Toronto could have also retrofitted their lights but it takes quite a bit of work to make custom brackets for the ballast. And I think magnetic ballasts might have trouble fitting. For this refit I used a 39w Advance E-vision electronic ballast.
Since I couldn't find a 39w ED-17 CMH (do they even make those?), I had to settle for the PAR 30 lamp. I also tried a PAR 20 lamp but I found the PAR 30 lamp had a wider beam which looks a bit better.
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How does the PAR lamp compare to a standard ED lamp? Yeah the lowest wattage elliptical MH lamp is 50W PSMH as far as I know. Anything lower than that is probably only used indoors in recessed cans or spot lights so there's no demand for it.
Even 50W PSMH seems uncommon. McCann Lighting offers 70W PSMH as the lowest for it's fixtures but that's mainly because I didn't know that 50W PSMH existed until after i started including PSMH in the spec sheets so I'm just not going to add it in. I guess if I were ever to actually start McCann Lighting I'd offer 50W PSMH as a "contact-the-factory option".
Yeah, I don't really see 39w CMH being used outdoors anyway, I think 50w is the lowest MH wattage I've seen outdoors and even that is rare.
If I manage to find a 50w PSMH electronic ballast I might swap the 39w one out but I don't have any 50w CMH lamps. I have a 50w PSMH though.
these small PAR MH Lamps intreast me.
If I ever end up installing this, I might convert it to remote 150w CMH though. I have a couple of lamps and ballasts lying around.