The strangest fluorescent lamp ballast I've ever seen - Advance HB-234-TP

I bought a ballast on eBay of a model known to be among the weakest F40T12 ballasts. But when I wired it up and started testing it, I discovered that I had something far more strange. Watch and see. Follow me on Mastodon: https://tech.lgbt/@themaritimegirl Patreon: www.patreon.com/themaritimegirl