The electrician who walks around the office all day with a cart full of bulbs may be eager to try out Milwaukee Electric Tool Corp.'s new fluorescent-lighting tester, which combines bulb and ballast ...

In part 1 we discussed rectifying the ballast AC current to DC and we showed an open load protection circuit. Direct replacement of fluorescent tubes with LED assemblies can lead to uneven lighting.

International Rectifier has two new control ICs for dimming compact and tube-type fluorescents. Most designers won’t ever see them, though, because they go into the bases of compact bulbs or into ...