I ordered a V5AS lens which is the screw-type lens for the 201SA series, however it doesn't fit on a head with terminal board (mine). Although I was able to order the V5AL latch-type lens from Graybar, I'm temporarily holding the screw lens to the ears on the head with pieces of string. The light works really well, though.
I have moved this fixture onto my shed, where it replaced my lithonia yardblaster. However, the ballast buzzes very loudly, when it was silent before. Any ideas what would cause this?
Often, something will be slightly loose and amplify the ballast hum - the socket mount or the ballast itself may not be tightened down all the way. I've also had buzzing occur from old photocontrols when they near the turn on/turn off points. I've even had lamps themselves buzz as the arc tube frame vibrated with the ballast.
The light may not me mounted tightly to the arm or mounting surface. I noisey ballast isn't a problem. I tune it out automatically. If it's outside it's not that big a deal.....
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