I had an electrician install 5 2x2 troffer fixtures in my cellar drop ceilings, these use two u-shaped 34 watt bulbs. (The fixture are Liothonia lighting, sold at Home Depot.) The fixtures are on three different circuits, two circuits have two fixtures and the third circuit has one fixture.

The fixture are all acting up, delayed starting, up to 10 - 15 seconds or they do not come on at all. The electrician has checked the wiring and remade all the wiring connections, resat the bulbs, etc.

What should be checked next? What can I have my electrician do next?

Any help would be greatly appreciated

Bob