metal halide

Hello, Should I go for 600W MH/HPS or 2x 400W MH/HPS. I was told 800 watt was too much for 120x120, but I still wanted to ask here. The bulb will be air cooled and the ballast, too. Both, the bulb and the ballast will have their own independent cooling system, so the temperature isn't a problem.

Hello all ! Me and a friend are looking at different t options for tents and thinking of useing 4x4 tents in different rooms. Be that as it may .... could people share what they have gotten for yields from 4x4 ? Please include what type of light, how many plants, and growing medium please ...

Anyone else running a combination of led lights and hps or metal halide this round i am running a combo of a 1000w metal hallide with two viper spectra 600w led as side supplemental lighting for my nine ghost tangies:fire:

I have this Digital Electronic Ballast For 400w HPS and MH lamps. I can't seem to find any pictures of it online or even what the brand is. I even searched the model number only to come up with slightly different versions of it. I have a couple questions if anyone on here is familiar with them I...

Hello everyone. So, I had a lot of fun with my first indoor grow. I did end up with lots and lots of seed though from one plant. Now it's time for round 2. So, with all this seed I asked myself, what would happen if I grow 40 plants out, sex them, and then flower the remaining females as soon as...

My buddy just grabbed some of these last night and gave me 2. Will fully document this grow from seed to harvest unlike my other grows since this is supposed to be fire lineage (iunno, im just a noob to all of this) and i can put a brand nane/lineage on this grow vs just showing off my cool...

Hey guys, I think I'm using a way too old 400wMH bulb and wasting lots of growth time, and placing the bulb very close to compensate and heat and drying out the RH aroundplants becomes an issue, I need a new bulb. For veg with the 400 I never really made a big deal and just get a generic bulb...

Hello RIU! Bare with me. I know, I know, lots of information out there and before you criticize me just be aware I want an updated opion based thread for 600w ballasts with YOUR EXPERIENCES and testimonies to the 600w ballasts you use. I have done my research. I have my own and although I am...

Hey RIU people! Newbie grower here. I was thinking of buying a Firefly venus series 400w MH floodlight for veg and i was wondering if it was possible to substitute to a 400w HPS lightbulb for flowering? I have 0 experience with HID grow lights and im unsure if it would be compatible or not. I...

Hello all! _____________________________________________________ TL;DR Zero-experience noob, need advice to decide between 300W LED and 250W-400W MH/HPS setup. Grow area will be 32"x32" (80x80cm), height undecided (63"-71", 160-180cm). Tropical climate (right on top of Tropic of Capricorn)...

Hey all. I had someone pick up a MH bulb for my grow, and he got a mh light thats 10,000 deg kelvin instead of 7,200 deg kelvin. He has grown before, but not indoor/medical. (from what I could tell he would amend the soil with chicken shit, etc., and let the plants do their thing with little to...

Legal medicinal grow, basement. Will probably try to convince roomies to allow a 4x4 tent, but may go 3x4. DWC hydro in 17gal containers. So far 7 normal seeds popped and unsure of sex (~3 weeks weak fluoro) Will be buying light(s) very soon. Had previous positive experiences with weaker...

Just starting this thread cause of all the clutter out there. I'll be posting my questons here. You are welcome to answer with fact, opinion or both, I even welcome speculation. Just give your reasoning, if you insist on just posting your opinion or information I will simply press ignore...

First time grower here trying to set things up, so I probably can't say thank you enough in advance for any help or comments! :P Set up: 400w Apollo MH bulb, 1000w Hydro Crunch air cooled reflector hood, 400w Apollo ballast Electricity: old house, probably old wiring, the only thing running in...

Hey it's time for me to replace my bulbs before my next grow and this is my first time having to buy bulbs my first set came with the light in a set. I'm just wondering what companies are known for producing good bulbs for the money? By the way looking for Metal Halide (MH)and High Pressure...

Check out this video of my Giant Bell Peppers grown under High-UV Light.

For a while now Ive used T5 fixtures for veg growth. They are effective and efficient. But some strains seem to never really harden up or build enough vigor to maximize their potential. Using the T5 fixtures were cheap and easy to use. They produce low heat and can be set up with multiple...

Hey people, I have done a ton of reading and general research when it comes to all aspects of indoor growing and I'm happy with most of my knowledge and beliefs but I have recently come across a contradiction. Here it is, I have always believed that it's best to keep your lights (MH and/or HPS)...