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Old 05-01-2010, 01:08 AM   #1
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How do you connect Circular Fluorescent to AC Cord


Hello,

I'm no electrician, but I would like to take a basic circular fluorescent bulb (four pin) and connect it to an AC cord that i can plug into common outlets. What components do I need, and how can I achieve this? Thanks in advance.

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Old 05-01-2010, 03:03 AM   #2
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How do you connect Circular Fluorescent to AC Cord


seems like the obvious answer is to take an old fixture and just install a cord. Unless im missing something here

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Old 05-01-2010, 05:37 AM   #3
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How do you connect Circular Fluorescent to AC Cord


You can't plug the bulb directly into the wall, if that's what you are trying to do. You need a ballast between the wall and the bulb...

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Old 05-01-2010, 09:54 AM   #4
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How do you connect Circular Fluorescent to AC Cord


Some circline bulbs come with their own ballast. Usually it's part of the lamp.

I just made some pendant lights (out of aluminum cake pans) for my garage using the kind of circline bulbs with their own ballasts.

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Old 05-01-2010, 11:03 AM   #5
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How do you connect Circular Fluorescent to AC Cord


Thanks. How can I spot the bulbs that come with a ballast? Normally I would read the box, the complication is I'm in Japan and not sure if I'll be able to spot that on the box in Japanese, or if they even have the same term for it. So are those plugged into an outlet, or hardwired?

I can't use old fixtures as I'm designing a series of light boxes (21 in total) for a photographic exhibition, and trying to do so on the cheap. Thanks.
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Old 05-01-2010, 11:50 AM   #6
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How do you connect Circular Fluorescent to AC Cord


The ones with ballast have a conventional base that screws into a socket.



You can also buy just the ballast/socket part, but it's (oddly) the more expensive way to go.

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Old 05-01-2010, 11:43 PM   #7
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How do you connect Circular Fluorescent to AC Cord


Cool idea for a fixture. I have to say that your circular lamp isn't that hot. I don't know about Japan, but the lamps here are fairly expensive. Not to mention they are a bit of a pain to change as well. In my experience they are mostly used on older fixtures, so this may play into my bias.

Maybe you could reconfigure the fixture for a four pin compact fluorescent. Or an LED equivalent?
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Old 05-02-2010, 08:22 AM   #8
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How do you connect Circular Fluorescent to AC Cord


Before they invented CFL's, the Circline type fluorescents with ballasts shown above were used as incandescent replacements, to fit in table lamp fixtures that had a base up bulb and a wire frame (harp) up past the bulb to hold a lampshade from above. Many although not all such fixtures allowed the circular fluorescent tube to be finagled around the harp.
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Old 05-02-2010, 10:06 AM   #9
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How do you connect Circular Fluorescent to AC Cord


They were just under $8 a bulb, which is a lot for garage lighting. But they should have a long lifespan, and I needed something that wouldn't look too stupid in the middle of an upside-down cake pan.

These are pictures from when I was putting them together. I wanted light fixtures over the bench at the front of my garage that would still allow the garage door to go up and down.



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Old 05-02-2010, 10:21 AM   #10
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How do you connect Circular Fluorescent to AC Cord


what happened to the tailights on your porsche,
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Old 05-02-2010, 10:49 AM   #11
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In the late sixties, Porsche made a race model (the 911R) where they cut as much of the car's weight as possible. The fiberglass taillight assemblies saved some weight in the back, where it's most important on a 911. I'll grant you, however, that they also resemble something you might pick up from the trailer section at Autozone.

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Old 05-02-2010, 11:08 AM   #12
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How do you connect Circular Fluorescent to AC Cord


thanks for the clairification i was like no way he put some elcheapo taillights in that thing nice ride

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