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Guys im going to have a crack with some 100w leds now rather than passive air cooling with a heatsink, could i use a powerful peltier ??? would a 100w peltier be ok for a 100w led chip ? cheers

hello people im looking at doing a room 2.4m x 1.2m x 1.8m an want to bloom with leds !, Im doing 4 x cool white 100w with a 100w red inbetween thw 400 so W W R W W. The colour k on cool whites is 2800 - 3200k. Has anyone else done something similar ? how did it go ? any suggestions on...

ok guys i know that 2700k should be used when in flower, but has anyone tried a 100w led @ 3000 - 3200k for it ? going to add a 6500k @ 100w also :) what you guys think ?

Hi guys what size fuse should i be using in a 6oow hps plug ? 5 ? 13 ? cheers

hi guys, woke this morning to find my rcd has tripped ! they are on 12hrs but only got 8hrs then a 4hr trip then another 4hrs light !. my ladies have been on 12's for 4 days now, im wondering if its ok to flick them back to 18's until i resolve the issue with what is causing the trip. This...

hi guys this is my first post so go easy on me :) . Right i have 5 x 400w hps ( 4x in flowering over 20 plants & 1 in my clone n mother room) lights at the moment and im going to change these too 15 cfl, these ones :- Introducing the 105 Watt FULL SPECTRUM Daylight CFL. This amazing lamp is an...