On Mar 1, 9:33*pm, ransley wrote:
Can I put a 50w Metal Halide bulb in a fixture sold for a 100 w metal
Halide light.

Can I put a *smaller watt bulb in a 100 w Mercury vapor lamp , maybe a
50 or 75 *watt.


No, you can not...

You would have to replace the ballast inside the fixture to work
with the new desired lamp...

~~ Evan