Gerald:
I have a strange looking light fixture in my 1968 Caravel that looks like the lighting in airplanes and buses. I think it may accept compact flourescent bulbs. One has recently burned out. Where can I purchase replacements?
Thanks in Advance
Jeff
>From: "Dr. Gerald N. Johnson, electrical engineer" <[EMAIL PROTECTED]>
>Reply-To: [EMAIL PROTECTED]
>To: Multiple recipients of VACList <[EMAIL PROTECTED]>
>Subject: [VAC] Re: Compact Flourescent Bulbs
>Date: Sun, 15 Apr 2001 13:28:46 -0500
>
>12 volt fluorescent ballasts tend to operate at supersonic frequencies
>because that makes the lamps more efficient. 30 years ago they weren't
>up the supersonic frequencies and fluorescent fixtures on city busses
>tended to be very annoying.
>
>I'm liking the twist replacement lamps better than the plain u-tube
>replacements that screw into standard lamp sockets. They seem to be more
>efficient and to have a more uniform spread of light. It took two tries
>a year ago at Walmart to bring home a working one, but I noticed
>yesterday that they had them from GE for about 1/3 the price from last
>year. The "reflector" compact fluorescent lamps are barely greater in
>efficiency than incandescent reflector lamps.
>
>Electronic ballasts may operate the lamps at higher frequencies than 60
>Hz for greater efficiency. At the same time they may interfere with
>radio and TV reception. World standards for interference are tougher
>than a few years ago, but not as stringent as I'd prefer.
>
>By the way, Dc fixtures using circuline lamps won't be using the new
>phosphors, but the classic cool white and warm white.
>
>Gerald J.
>
>
>
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