LED LIGHTING

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Alwayslearningelec

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I have (10) LED lights that say 10W(75W equivalent) then it says to include (2) 100 watt tranformers. I thought I would need one transformer for each LED light. Will two 100W transfromers handle all (10) lights? Thanks.

By the way how mnmay 20A circuits would it take to power these lights/ the transformer and how is that figured? Thanks.
 
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horsegoer said:
I have (10) LED lights that say 10W(75W equivalent) then it says to include (2) 100 watt tranformers. I thought I would need one transformer for each LED light. Will two 100W transfromers handle all (10) lights? Thanks.

By the way how mnmay 20A circuits would it take to power these lights/ the transformer and how is that figured? Thanks.
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If the led is 10 watts and there are 10 then one 100 watt transformer should handle the load. I don't understand how you have 10 fixtures that are 10 watts and get 75 watts.
 
Dennis Alwon said:
If the led is 10 watts and there are 10 then one 100 watt transformer should handle the load. I don't understand how you have 10 fixtures that are 10 watts and get 75 watts.
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Or the "75W equiv" means something and there could be a 100W transformer at each LED fixture. Hmmmmmm???

That is what I was trying to figure out.
 
horsegoer said:
I have (10) LED lights that say 10W(75W equivalent) then it says to include (2) 100 watt tranformers. I thought I would need one transformer for each LED light. Will two 100W transfromers handle all (10) lights? Thanks.

By the way how mnmay 20A circuits would it take to power these lights/ the transformer and how is that figured? Thanks.
Click to expand...

My take. Apparently the Mfg. Recommends that you do not max load the control xfmr's, hence the use of two for (10) LED lights. Since the use of LED is to be more efficient, logic tells me the light output of the 10W LED is equivalent to 75W of incandescent. Do I believe it? Not without much better data, too much smoke in the LED ficture market at this point.
 
GearMan said:
My take. Apparently the Mfg. Recommends that you do not max load the control xfmr's, hence the use of two for (10) LED lights. Since the use of LED is to be more efficient, logic tells me the light output of the 10W LED is equivalent to 75W of incandescent. Do I believe it? Not without much better data, too much smoke in the LED ficture market at this point.
Click to expand...

Ditto to the above.
 
GearMan said:
My take. Apparently the Mfg. Recommends that you do not max load the control xfmr's, hence the use of two for (10) LED lights. Since the use of LED is to be more efficient, logic tells me the light output of the 10W LED is equivalent to 75W of incandescent. Do I believe it? Not without much better data, too much smoke in the LED ficture market at this point.
Click to expand...

Makes sense. Thanks. So he is confusing the situation by adding 75w equiv. there is really no need for that data???
 
My guess would be that the power factor is not so great. The lights may only be 10 watts of power but the the VA might be much higher. If the PF is only .5, that would indicate a 100 VA transformer for 5 lights.
 
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