OK. I believe that it is almost imposible to give an overdose of light to our plants. The only problem could be the heat produced by the lights. I think it would be interesting to see what happens if we give the TL as additional light in some growbeds.
Last week I already contacted some companies, to ask for prices of IP 65 `waterdicht` armatures with lights, but I agree that IP 44 would be sufficient and probably cheaper Shall I ask again, but now for IP44. One of the companies has special prices for schools and other non profit organisations.
If yes, how many do wee need