On 9/9/19 12:38 PM, Bennett wrote:
On 9/7/2019 6:19 PM, Larz wrote:
I picked up a surplus yard light called Electripak SV-175M thinking
that it was 175 watts.Â* It uses a mercury vapor bulb, but the bulb
inside appears to be 125 W.Â* Since I want to use 175 W mercury vapor
instead, is it possible to swap out the medium base for mogul base and
use the 175 W mercury vapor bulb?Â* It has an H42 ballast, no
capacitor.Â* Thank you.
Once the ballast is changed, any chance the 175W bulb will overheat in a
fixture ?designed? for 125W?

I decided NOT to modify the 125W MV lamp yard light in any way, just
swap out the frosted light for a clear one of the same wattage and
medium base.

The ballast on the way is for either 175W MV or Metal Halide. The bulb
will be housed in a ceramic Mogul base and away from anywhere where it
might overheat or cause melting.

As I said prior, I plan on operating these intermittently to help bring
in insects and moths during the night.

I understand the concern about the 175W heat, so I have made allowances
for that with the correct base and the fact that it will be operating
open air from a tripod. We're talking maybe 5-7 hours maybe half a
dozen nights a month. I'll be seated close by the whole time.