An interesting oddball from Mike/Streetlight98. It's post- EPACT but doesn't list 34-watt lamps at all, interestingly enough.
At .60a, that's about 66 watts from the mains, so even if the ballast were perfectly efficient that's about 33 watts per lamp...Be curious to try this ballast one of these days!
Kinda odd seeing a USI branded ballast too since USI makes concrete light poles here. Although I'm pretty sure this is a different company.
Yeah I agree with the GE/Valmont looking label too, I wonder if there's a two letter date code somewhere on the ballast since that what GE used.
I guess these were also sorta like the predecessor to modern LBF ballasts which are usually used to retrofit fixtures with excess lamps/lumen without delamping.
I had gotten this ballast from my former middle school when they went LED. Interestingly enough though, this was in a light table, not an actual light fixture in the room. The whole light table was out next to the dumpster. I removed the "fixture" from it (basically a flat piece of metal with the ballast and lampholders on it) and kept the ballast. Lamps were well-used Sylvania CWX Supersavers, which were left at the scene lol.
This was then installed in my grandpa's shop in one of his 4X F40T12 troffers in the office. When the troffers were replaced with LED recessed cans, I gutted the troffers with the intent of converting them to 4X F32 with two four lamp ballasts wired for overdrive. I ran out of ballasts in the process and my grandpa never got more. We haven't installed any additional fixtures in the shop yet but he plans to have me continue over the summer and has some other things lined up electrical/lighting-wise. The plan was to install the three T8 troffers sans-lenses (the doors will be reused at his house for ones missing them) and two 2-lamp 2x overdrive F32T8 strips in the shop.
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Yeah I agree with the GE/Valmont looking label too, I wonder if there's a two letter date code somewhere on the ballast since that what GE used.
I guess these were also sorta like the predecessor to modern LBF ballasts which are usually used to retrofit fixtures with excess lamps/lumen without delamping.
This was then installed in my grandpa's shop in one of his 4X F40T12 troffers in the office. When the troffers were replaced with LED recessed cans, I gutted the troffers with the intent of converting them to 4X F32 with two four lamp ballasts wired for overdrive. I ran out of ballasts in the process and my grandpa never got more. We haven't installed any additional fixtures in the shop yet but he plans to have me continue over the summer and has some other things lined up electrical/lighting-wise. The plan was to install the three T8 troffers sans-lenses (the doors will be reused at his house for ones missing them) and two 2-lamp 2x overdrive F32T8 strips in the shop.