Id argue two standard 277 volt 3 way switches will work. From reading the code nothing requires a contactor.
Nothing to do with the voltage, the problem is the switches aren't opening all ungrounded conductors.
You still end up with a live hot in that fixture with the switch off
Nothing to do with the voltage, the problem is the switches aren't opening all ungrounded conductors.
You still end up with a live hot in that fixture with the switch off
Does a LED fixture always have a lampholder?
I just put two in the entry way of my office that didn't , well depending on what your def of "lampholder" is.
Depend on the inspector I guess and if the job is big enough to save lots of money on contactors.
All other traditional electric discharge lamps pass a current through a gas to produce light. Typical fluorescent tubes have one more step and need the phosphor coating on the tube to convert non visible to visible light.Is a led considered an electric discharge lamp?
We have installed hundreds of Light Efficient Design lamps...hi bays, street lights wall packs etc. Mostly are mogul base lamps, you bypass the starter and ballast.Does someone make power supplies/LED boards for refitting high bays? I've got a bunch of 400 HID highbays to retrofit. I'd love to put in something like this and trash the whole idea of using edison bases
Me too, do you think these are more efficient than HiLumz Diamonz kits?We have installed hundreds of Light Efficient Design lamps...hi bays, street lights wall packs etc. Mostly are mogul base lamps, you bypass the starter and ballast.