youngbotanist355
Active Member
Have you built Scott's light yet Growmau5?
do you have an even canopy?I've got 12x cxb3070 @ 1.4 amps doing a great job covering a 4x4 space
AWESOME! JUST AWESOME! I couldn't be more grateful for that bit of info!So basically theres CXA and CXB series... CXB are the newer ones and are better. Then theres 3070 after the letters. Thats the size of cob for that series. Most people run CXB3590s or 3070s. The 3590 is more efficient, (more actual light per wattage) but cost more up front. The 3070s are still great, but run a little less efficient. The upfront cost is lower as well.
The difference in cost for each cob is about 20 bucks. It adds up, but so do the savings over time from using the 3590s running low.
After you have selected the size and color temp cob you want to use, its time for driver shopping. How hard you want to run your cobs depends on how efficient you want to be. Running them lower gives better efficiency, and also allows you to fit more cobs per driver.
So basically, do you want to minimize upfront costs by losing a little efficiency, or do you want to invest more to save more in the long long run?
Thank you @Growmau5Firstly, I like your style S_S. Starting your own thread, asking about prefab lights, doing the research and coming to your own conclusions about what is right for you. Cheers to ya.
- I have a good understanding about your setup & grow space, and based on the first line of this thread, high yield is important to you.
-I read back through the thread, but I did not catch a mention of budget. you mentioned 4x mars400w so I am assuming $800. is this in the ballpark?
And after a yr most likely the HPS bulb should be replaced as they lose output fast with all that heat they produce.for sure. so you're saying that 3x 200w CXB3590 would be a good start for replacing a 1000w hps? i would love the energy savings. the savings will pay for setup in the first year
Yes. I replaced a 1000w w/ 400w of CXB3070 (not as efficient, only 45% prior to loss) and ran the same strain in the same area. While I yielded less, my gram per watt doubled. I yielded a little over 600g with a 1000w on the same strain (both grows were clones of same plant), same grow area and 488g from 400w of CXB3070. And yes, you need a new bulb every year at the most to keep the efficiency up on HPS. Thats about $60 although a bulb every 6 months would be better.for sure. so you're saying that 3x 200w CXB3590 would be a good start for replacing a 1000w hps? i would love the energy savings. the savings will pay for setup in the first year
I have plants up to 30 days apart under that particular light, the penetration with the LED is great because your tips can be 5" away from the light with an oscillating fan. So no, my canopy isn't even. I actually just setup a gavita on 1000 watt mode next to it since its cooling down, that thing raised my room temp from 73 to 83 as the new high. I can't wait til I can afford to have only DIY LEDs in the garden.do you have an even canopy?
so theoretically if you double your current light setup and get around 800 grams? all hypothetical but i see what your saying.Yes. I replaced a 1000w w/ 400w of CXB3070 (not as efficient, only 45% prior to loss) and ran the same strain in the same area. While I yielded less, my gram per watt doubled. I yielded a little over 600g with a 1000w on the same strain (both grows were clones of same plant), same grow area and 488g from 400w of CXB3070. And yes, you need a new bulb every year at the most to keep the efficiency up on HPS. Thats about $60 although a bulb every 6 months would be better.
hell yeah.I have plants up to 30 days apart under that particular light, the penetration with the LED is great because your tips can be 5" away from the light with an oscillating fan. So no, my canopy isn't even. I actually just setup a gavita on 1000 watt mode next to it since its cooling down, that thing raised my room temp from 73 to 83 as the new high. I can't wait til I can afford to have only DIY LEDs in the garden.
you dont have any bleaching from having the led that close to the tops of the plant?the penetration with the LED is great because your tips can be 5" away from the light with an oscillating fan. So no, my canopy isn't even.
No I don't get any bleaching, part of what makes this setup so awesome is that you have multiple sources of light rather than just one, so it's a bit less intense and you get a nice spread with fewer shade spots.you dont have any bleaching from having the led that close to the tops of the plant?
What cobs and how hard are you running them? That sounds too close bro. No way you can do that with cxb 3070s @1.4aNo I don't get any bleaching, part of what makes this setup so awesome is that you have multiple sources of light rather than just one, so it's a bit less intense and you get a nice spread with fewer shade spots.
Cxb 3070 @ 1.4 amps and I guess it's more like 6-7" away for the closest tops, and if I put my hand right over the top it barely feels warm. It's mounted on a big heatsink though.What cobs and how hard are you running them? That sounds too close bro. No way you can do that with cxb 3070s @1.4a