I still have a couple of these that came with some 175W yardblasters. I converted one into a shorting cap by opening it up and taping over the photocell and left the other one stock.
Why are the Yardblaster Photocells always Shorter than the Better Brands?...the Caster PC seems more Sensitive than the Longjoin PC's that go with the Regents as the Light Turned off just by Light Reflecting off the Walls from the Fixture.
You also happen to have the pic showing the er results of the frying?