bigtiller
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Which post are you referring to? I don't recall who terry is.
48x39x14 shop build
- Thread starter ovrszd
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Which post are you referring to? I don't recall who terry is.
ultrarunner
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Some LED are better than others...
When the first CREE LED came out in mass they were very heavy and Interference was rated as very good.
I know the design has changed since then and my first thought is they found a way to make them cheaper... as often happens to be competitive in a world market.
When the first CREE LED came out in mass they were very heavy and Interference was rated as very good.
I know the design has changed since then and my first thought is they found a way to make them cheaper... as often happens to be competitive in a world market.
OP
ovrszd
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Yeah, I believe the earlier LED's that used ballasts were just as prone to interference as flourescent.
I'll try to find time to address this problem soon.
I really appreciate everyone's input!!!
cat fever
Elite Member
Richard the shop looks great, make sure you figure out the lighting completely. When I build my shop this summer you'll have all the answers for me.:laughing:
countrybumpkin
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This reminds me , I need to try my openers with my led lights on, of corse I haven’t tried them outside the building at all yet. 
Fallon
Super Member
There are still a good number of retrofit LEDs out there that you install without removing the ballasts. They are easier to install, but I think the fundamental concept is trash. You are leaving an un-needed part in the system that will burn power & can take out the light when it fails. It also means the ballast & power supply in the tube are able to cause RF interference instead of only 1.
I spent the time removing ballasts as I started replacing fluorescents with LEDs. I got inconsistent results with my multimeter & rewiring the tombstones. After failing once i said screw it & got off the ladder. Picked up a bag of pre-wired tombstones properly configured for the LEDs that came out to $5 a fixture. I definitely have the skill to wire things right & troubleshoot whatever was wrong. But $5 to avoid going it with arms over my head while standing on a ladder was way worth it.
OP
ovrszd
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Yeah, leaving the ballasts is a bad idea. Won't help the interference issue and burns electricity.
In my studies I learned there are two types of tombstone bulb holders. Shunted and non shunted.
Preferred holders are non shunted. That's what mine are. Use LED bulbs that power one end of the bulb. One pin +, one -. Other end does nothing but hold the bulb. Very easy to convert. Only cost is the bulbs which are $10 each. I need 36.
In my studies I learned there are two types of tombstone bulb holders. Shunted and non shunted.
Preferred holders are non shunted. That's what mine are. Use LED bulbs that power one end of the bulb. One pin +, one -. Other end does nothing but hold the bulb. Very easy to convert. Only cost is the bulbs which are $10 each. I need 36.