Hello elitaone,

The ballast already has a fairly large capacitor in it already if it's a c & c (coil and core) ballast.
Seems that you already know the problem, old shitty wiring. Time to get an electrican to check out and fix the real problem.

OM
oldmac Reviewed by oldmac on . Problems with Power Supply starting HPS 600w light, It goes some of the time, and other times the ballast just ticks and the bulb doesnt ignite, You have to turn it on and off a few times for it too kick. Im pretty sure the house where its at, the power just isnt enough, its old crappy wiring etc, I measured the Amps coming out of the power point, and only getting between 2-3A at the most, found another power point inside getting 3-4A and it kicked in straight away Is there any sort of system (Im thinking like a farad cap in a car?) that you Rating: 5