Thanks Mike! I wanted two F48 slimline lamps for a damaged 8ft Lithonia fixture that I chopped down to 4ft. I went to a lighting place,they didn't have any F48 lamps but they could order in a couple,I said sure expecting the price shouldn't be too bad,well... it turned out that the price on the invoice came to $30 each!! I got hosed on a special order. I should of had them give me a price before ordering them in. Yes I got your email,it sounds like you didn't receive my reply.I will copy it and message you here.