Good afternoon -
Bought a new home in January and have been slowly figuring out the issues with the pool. I have what I believe to be a Hayward Astrolite 580 Niche Light. The marking on the light housing doesn't have the specific model checked. In trying to figure out why the light wasn't working I pulled the housing and checked voltage. I have 120V in the junction box feeding the light and 9.8v in the light socket of the lamp. Do these lights have a transformer to cut the voltage in-line or in the base of the lamp housing? I'm assuming this is a 12v fixture, but I can't figure out the voltage drop. Whomever changed the bulb last time put a standard 120v flood light bulb in it and that wasn't working. Any assistance is much appreciated!