Bill, The fourth floor of our City Hall Building will be renovated this year. Our Engineering Dept. Project Manager intends to use new "energy efficient T-5 lamp fluorescent fixtures in keeping with Act 29-General Energy Savings Program" (2'x4'lay in type). My opinion on these fixtures is requested. We normally use the T-8 type. I'm attempting to gather information on the T-5 type so I can be more familiar with it.