Sep 18, 2015 at 07:27 PM Author: Solanaceae
That thing is unusually small based on its application...

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Sep 19, 2015 at 01:24 PM Author: themaritimegirl
It still has to have as much as 0.43A go through it, though. Yet it's smaller than a 0.16A T5 choke.

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Apr 14, 2019 at 09:10 AM Author: dor123
40W can't operate at 120V from choke. It require an autotransformer ballast.

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Apr 14, 2019 at 09:55 AM Author: xmaslightguy
With the capacitor it ups the voltage enough to work off 120v. The lamps are running somewhere in the 25w-30w range rather than 40w Interestingly enough, with the LOA version (which has no thermal protection) when a choke goes up in smoke - and thus is shorted, the light will still light at probably half its original brightness, running of just the capacitor.

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Apr 14, 2019 at 07:35 PM Author: xmaslightguy
@ultralume: Yep, capacitor is in series with the choke. Somewhere I read that it was a 4uf/200v. I had a fixture where one of the capacitors had went bad, so I used a replacement with those specs & it works fine.

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Apr 14, 2019 at 08:35 PM Author: xmaslightguy
@ultralume: They do underdrive, I remember the box said something like "69 watts Total" I do like the idea/simplicity of them, but my biggest complaint is the lack of thermal protection. As for cold starting... depends on how cold, if its cold enough they'll flicker horribly til the lamps warm up(if its too cold for them to warm up you do risk frying the choke), and if it gets enough below zero (F), they won't do anything at all(which is actually good since it acts as a safety feature)

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