hps

So far the only side by side test I've seen was done by Migro. They claim the average yield of an HPS is 0.5 grams per watt and 1.0 grams per watt for a quantum board (Samsung LM301B). Do you agree with these numbers and where would you position a standard LED light?

I'm helping a few people grow so I decided to create a series of infographics rather than overwhelm them with unnecessary technical details. This one is a comparison between HPS, standard LED lights and the new quantum boards (Samsung LM301B). Can anyone confirm or refute the numbers, please...

Yooo! Currently 10 days after germination on my first grow. I've converted a closet which is roughly 3ft wide by 2ft deep and 8ft high. I have space for 3x 5gal fabric pots in there and a 250-660w dimmable ballast with wing reflector and dual spectrum HPS that apparently retains the same light...

Hi! I have never heard before about this type of light for growing herb. They say its really great and it doesnt use much electrity too but its weird is that I dont really see people using it.

so I haven't been growing for the past year and a half. I got kind of burnt out on it and decided to focus on some other projects. Now that time has passed I am looking to get things up and going again. I have a 20x40 barn with AC, 200amp electric, and semi finished to work with. I am looking...

Hello, I currently have a rectangle hood around a 600w hps going in my 4x4 flower tent. I am installing UV Led strips along the long sides of the hood, and along the shorter ends of the hood I am interested in installing two new lights. I was curious, after looking into different options, I...

Hey Guys, I'm pretty close to harvest so wondering both for now and future grows as there probably is not much I could do in the next week or so. I'm growing Green Crack CBD and they are maybe a week out even less from harvest. I know leaves tend to go first but two out of the 3 plants are...

Hey everyone! Long time smoker, first time growing with any sort of significant lighting system. I’m running a 1000w vivosun HPS and currently have plants that were all started from bag seed. I’ve ordered myself 10 auto flower seeds from Crop King Seeds (5 Banana Kush, 5 Blueberry x Big Devil)...

hi so as the title says, i wanna use my 400w MH bulb with a 400w magnetic HPS ballast, i did some research here and on other places and it didn’t end with a conclusion, some said its ok and nothing to worry about and some strongly advised against it and their reason was that MH bulbs need lower...

Been out of the grow game for about 15 years and am more confused than ever on lights. back in the day I used a standard 400w hps for veg and flowering. worked finr but heat management was an issue at times and a blessing during the winter. this time ill be in a 4 x 4 x 7 grow tent in my garage...

Hello, today I bought a new HPS 600W grow light kit. The problem is with the magnetic ballast when I plugged the lamp it started smoking and I immediately unplugged it. Is it normal to smoke when first started?

I currently have in a 5x5 under a 600w dimmable ballast in 10l coco coir getting fed cx horticulture cocos a and b and cal mag all ph’d between 6.2 and 5.5 the strains are the bakery seed bank sour orange auto and cheese cake auto but the growth has come to a halt I had a little bit of nute burn...

Was under 400w HPS with 150 true watt supplemental LED’s for 6.5 weeks, then transplanted outdoors. Outdoor pic is day 60.

First off I'm going to reposition the humidifier and relocate fans and remove cratesafter work today. Switched to flower yesterday 600w hps 4x4 tent 2 gorilla glue 3 sour diesel SCROG netting in place Foxfarm ocean forest General hydroponics nutes Anything I should take care of. Hoping to...

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today these ladies have been in veg for 1 month. 4x4 tent Under 1 400w mh and 2 full spectrum led (cheap amazon ones) Full intake and exhaust setup General hydroponics nutes at half strength Netting just put up Switching to flower in a couple days (can't go to high due to ceiling height in...

F for respect.

So I have not disposed of this nice plant yet even though its preflowers seemingly indicate a male. Why is it growing more like a female? (Wide and bushy.) Bag seed

Round 2 under way Day 1 3 sour diesel 2 gorilla glue 4 Foxfarm ocean forest 5 gal fabric pots (next transplant) Currently under 2 full spectrum led lights Soon to be under a 400w mh Netting will be going up very soon General hydroponics nutes Going to flower under 1000w hps for roughly 9 weeks

Transplanted from a 3 gal pot to about an 18 gallon shopping bag, which I’m sure I will receive plenty of criticism for, since it was already over potted in its original container. (Want to grow a massive plant for as long as possible.) Notice how even though there’s more leaves in the first...