what would you recommend is best for the yield? 500W = MS-250 Halide + HPS-250 for 51,500 lumens http://www.futuregarden.com/cgi-bin/shop/30-2105.html?id=xt9Vrncw or 500W High Pressure Sodium http://www.futuregarden.com/cgi-bin/shop/30-2057.html so 500W mixed bulbs 250 and 250 or 500W HPS in theory whats better i would probably be most curious to see the mix of light (hps and mh) but im not sure that would be best for those plants. what do you think is best for the plants?
Hey there green! This is actually my first post up on GC but I've been around. 52 watts Per sq. ft. for veg and 76 per sq ft for flowering. That is basically the rule of thumb... yet it isnt impossible to achive a good harvest in lower setting, some people actually say they get more yeild per plant in a set up that is 100 watts per sq. ft!! Your space is 3*3= 9 Sq. ft. with a 500Watt thats would put you in the 55watt per. Sq. Ft. area Most growers say that MH is more suitable for veg and HPS for flowring because of its place in the light spectrum. MH= BLUE HPS= More of an orrange/red. SUPPOSEDLY lol... HPS promotes more compact dense bud. Mind you, its not all about lummens, I think what you should be worring about your 3x3 are is heat... Not sure how much vertical space your working with but with 500watter in a space like that will create a heat problem. Cool tube would be your best but a air coled hood should work just the same. More money I know, but if you have to do something, do it right... right?? lol... Well I hope I helped you BuddY, and luck you. I*
FOR SURE!!! HEAT IS GOING TO BE YOUR BIGGEST PROBLEM. IF YOU DON'T HAVE YOUR G-ROOM SET UP YET. CONSIDER PURCHASING A ALL ENCLOSED HOOD WITH A COOL TUBE CONNECTION. SO IT DOES 2 THINS AT ONCE. 1. COOLS THE LIGHT BULB. 2. PULLS HOT AIR OUT. YOUR GOING TO HAVE TO PAY ATTENTION TO THE BALLAST AST WELL. IF YOU KEEP IT IN YOUR 3 AREA YOU STILL HAVE A HEAT PROBLEM EVEN WITH THE KICK ASS HOOD. SO..I WOULD 1. KEEP THE BALLAST OUT OF THE 3 AREA IF POSSIBLE OR 2. KEEP IN THE ROOM BUT PLACE A SMALL FAN NEAR IT. YOU DON'T WANT YOUR HOUSE TO END UP THE 7'O'CLOCK NEWS! GOOD LUCK BRO- LET ME KNOW IF I CAN HELP
^^^ No need to YELL! I assume you are talking bout flowering. If I had a choice of using a 250W MH and a 250W HPS or a 500W HPS for flowering I would choose the 500W HPS hands down. However, if you are making the choice for vegging and flowering I would go with the 250W MH and 250W HPS. And yes, I agree. You are going to need to deal with the heat in some way or another. Good luck.