I haven't got problems with the heat off the cfl bulbs you can actually hold them when on as opposed to the metal halide which does get verry hot hence my post are the cfls going to be more lumen efficient being about 3" away without problems to the plants or will the metal halide be more lumen...
Thanks for that maybe I should have given some more information I have a choice of 15 x 30w 2000 lumen cfl bulbs (450w and 30000 lumen total) at 3" away covering a 4' sq area or a 600w 56000 lumen metal halide which due to heat from bulb needs to be about 3' from plants but still covering same...
Hi all looking for a bit of advice me the misses and the kids are starting a indoor flower garden and some herbs for the kids now my problems have come down to the lighting I have found out the colour spectrums needed as well as the luminous intensity required for heathly plant growth but the...