I’ve read all the posts of that thread with great interest, I’d just like to mention one or two tracks that haven’t been explored :
The more power you use the more problems you may get with heat. Adding more lights may mean moving them away from the seedlings making the extra lighting inefficient or you may have to add a fan.
Worth’s equipment is simple, reliable, efficient, not overpriced. You must be competent to undertake its wiring safely.
As murihikukid is starting from scratch he could have a look at the latest techniques French growers use : 20 '' long 7020 LED bars (10 bars are recommended = 8000 - 10000lux). The cheapest ones should be avoided, as well as the cheapest Chinese transformers which are often short lived, the safest solutions are found with computer transformers.
Safety problems have been stressed : don’t play with 110 /220 VAC if you are not qualified. With a low voltage watch the number of amps, select the right size of wires and a transformer with a big safety margin. Keep us posted when you have made up you mind. And built your nursery !
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