Lighting the Pemco Brightway 400 with a sodium retrofit lamp

[@davidtosh7200]

It does look like 1960s Westinghouse Type OV-25 remote ballast which measured 18 inches in length, but it has a split door and the location of photocell is at the back of Pemco street light fixture. Pemco is a very small market to make street light fixtures. Only General Electric, Westinghouse, and Line Materials (McGraw Edison) are the most common to make street light fixtures.

[@tornadosirenroubik4124]

Wow nice

[@worldwidehidcollectorusa3519]

You absolutely need to be extremely careful with running these Sylvania Unalux 360W high pressure sodium lamps on constant wattage autotransformer (CWA) ballasts because these particular retrofit lamps have a rapidly rising arc voltage drop over the course of their lifetimes. Because of the constant current nature of CWA ballasts, they can run these lamps at dangerously high power levels, which could potentially severely overload the primaries of those ballasts and potentially destroy them. The best way to operate the Sylvania 360W retrofit lamps is to use an extremely hard to find 400W H33 mercury vapor high reactance lag type autotransformer (HX) ballast or a reactor (choke) ballast designed for either 208V, 240V, or 277V supplies in order to properly operate the Sylvania 360W Unalux high pressure sodium lamps. Fortunately, you have a GE PowrBracket 400W H33 mercury vapor fixture that has a very rare HX autotransformer ballast. In that case, you are way better off running that lamp off that GE Powrbracket fixture instead of this Pemco Brightway fixture due to the likely presence of a CWA ballast inside. This advice should definitely save you from destroying rare lamps.

[@TheMichiganLightingEnthusiast]

This fixture is 250w and It's the same bulb as the other video..

[@worldwidehidcollectorusa3519]

@@TheMichiganLightingEnthusiast Good to know. I initially thought you had a 360W Sylvania Unalux lamp installed in this fixture.