Lighting

[Hondatransformer845]

So I recently acquired a bunch of 1000w hps and 1000w mh ballasts and hoods. Ive never ran any hps lights for flowering before. Only led for flowering and a 400w mh in my veg. room. So now im running a 400w mh and 1000w mh in my veg. room for 14 plants. My flower room will have two 1000w hps lights and im just gonna put my leds in a tent for flowering. I wanted to reach out to here some feedback and suggestions on what would be

better combinations? Also how fare the 1000w lights should be away from the plants if its different from led lights? Does anybody know if my yield should be more or less with the hps over led?

Thanks

 

[TurboBucket]

Even if your yield weight stays the same as LED it will cost you more in energy for the same result. Not only in the energy for the lights themselves but also in increased cooling costs. So your cost per gram will be higher.

HPS lights generate a lot of infrared which heats the plant surface more so they need to be kept at a higher hanging distance than LEDs. 12-24 inches compared to some LEDs that can be run inside a foot away.

 

[Slicknick909]

How many watts of LED did you replace? What kind of LEDs did you replace? Do you have something for cooling? You'll definitely need it with 2000w of HPS

 

[Hondatransformer845]

I was using 600w led lights. I always run fans in both my veg and flower rooms for cooling and to make the plant's stronger.

 

[Slicknick909]

I was using 600w led lights. I always run fans in both my veg and flower rooms for cooling and to make the plant's stronger.

600w at the wall or "600w" blurple LEDs?

 

[Hondatransformer845]

600w at the wall or "600w" blurple LEDs?

The light is equivalent to a 600w MH and HPS with veg and bloom adjustment switches. I've used it for two full flower cycles and had great quality but the yield wasn't really close to what I expected from it. My MH's give me a lot more growth during veg then any other light I have tried so fare. This will be my first indoor harvest with HPS which are 1000w. My associate was using HPS and ended up with a bigger yield using the same nutrients and environment as I use and the same strains. I acquired all my 1000w HPS and MH fixtures and ballasts by luck. I was doing a job for someone and they we're in there shedd from the last person who lived there and i got them as a tip for the job. All 13 complete light set ups with out bulbs. I wouldn't probably be trying a grow with HPS if i hadn't got them like i did. Does anyone know what 1000w HPS and MH set ups are worth with out bulbs? Heres a picture of the label on them.

both the ballasts say the same thing except half say MH and the other half say HPS. The hoods are all the same though. They work for either type. Thanks for the advice.

 

[Slicknick909]

You'll see a huge increase in yield, I bet that 600w equivalent light only drew 140ish watts at the wall. Get ready for 2lb+ harvests with 2000w of HPS!

 

[Hondatransformer845]

Yeah thanks that's what I wanted to see since i only had to lay out for bulbs. Some of the new strains im trying say the can yield up to 1,600g, 2,500g, and 2,000g. Alaskan purple, strawberry Lemonade, Dos Si Dos #33. I have one Alaskan purple already started but im waiting on my next order for 3 more Alaskan purple, and the other two i mentioned along with a bunch more strains. Thanks for the positive outlook i cant wait to watch it happen and keep adding to my journal with updates and pictures of my 2020 grow of many strains of some high quality plants.

 

[Slicknick909]

Yeah definitely don't go cheap on bulbs, that's actually one of the many reasons I gave up on HPS was the cost of the damn bulbs, if you're lucky you'll get 3 grows out of a bulb since they degrade rather quickly. You'll definitely have to use more than just fans for cooling though since 2000w of HPS will produce A TON of heat!

 

[Hondatransformer845]

Yeah for sure. I payed around $60 a HPS bulb by buying more then one at a time. Now i just need to finish building my new and improved flowering room. I have a couple stand up air conditioners and i was thinking of running one of those in the flower room. I have thermometer and humidity gauges in all my grow rooms. I also go to my local hydroponics store and get something if im in a pinch. I explain my issue and every time he knows what i need and has it right there. Thanks for more info. Im always looking for any advice or suggestions i can learn from.

 

[Slicknick909]

Here's some helpful info for figuring out how much cooling you'll need

"1 watt of electricity produces 3.412 British Thermal Unit (BTU) of heat per hour regardless of light type incandescent, HPS, CDL, LED, fluorescent, induction, etc. Therefore, a 1,000W HPS grow light (1,060W with ballast loss) generates 3,617 BTU per hour heat. A 500W LED grow light (550W with driver loss) generates approximately 1,877 BTU per hour heat. A 315W CDL grow light (335W with ballast loss) generates approximately 1,143 BTU per hour heat."

So basically you'll need -/+7300BTU of cooling for 2 1000w HPS so depending on the rating of those AC units you may be good with 1 or 2 of them.

 

[Hondatransformer845]

Here's some helpful info for figuring out how much cooling you'll need

"1 watt of electricity produces 3.412 British Thermal Unit (BTU) of heat per hour regardless of light type incandescent, HPS, CDL, LED, fluorescent, induction, etc. Therefore, a 1,000W HPS grow light (1,060W with ballast loss) generates 3,617 BTU per hour heat. A 500W LED grow light (550W with driver loss) generates approximately 1,877 BTU per hour heat. A 315W CDL grow light (335W with ballast loss) generates approximately 1,143 BTU per hour heat."

So basically you'll need -/+7300BTU of cooling for 2 1000w HPS so depending on the rating of those AC units you may be good with 1 or 2 of them.

Nice lay out. That is extremely helpful and important to know. Thanks, im excited waiting to finally button up my room and waiting for the HPS bulbs to come in. I have one of my new 1000w MH along with my original 400w hooked up already in my veg room and what a difference. Like night and day compared to the 400w MH. Here is a just now photo for you.