Review on ⚡️ KEB 220-1 TP Electronic Ballast with EMI Suppression - Keystone Ballasts by Cornelius Mosley

I installed one of these 9 months ago and no problem (no more flickering or buzzing, slight improvement in brightness). Now I have two more installed. Installation is simple: red wires on the top and bottom of one bulb, blue wires on the other. White and black to the appropriate wires. In my case, in the old wiring, the bulbs were connected with a jumper at one end. I disconnected them and followed the wiring diagram for the new ballast. If you cannot access the wire connectors on the back of the Tombstones, use your existing wires and secure them to the new ballast connectors with small 22 gauge gray wire nuts (https://www.amazon.com/gp/ product/ B072BKBZFN/ ref=ppx_yo_dt_b_asin_title_o03_s00?ie=UTF8&psc=1)