I will do as soon as theres anything close to worthy of potting up (kinda) in my tent mate was still a couple sad looking almost cotyledons this morning lol
Nice bro. Been spying the sonoff switches and therm/hygro controllers on eBay today. Props on the idea. Iām likely gonna be using it
1 Like
Cheersā¦ sonoff kit is excellentā¦however their servers go down fairly regularly but you can set the device to keep itās setting so even with no comms it carries on doing itās thingā¦ useful for my humidifier 
2 Likes
I really like the idea of a staggered flip. 24 down to 12 1 hour a day.
Once itās set itās set isnāt it though so Iām guessing thatās a manageable trouble? Especiall At those prices
1 Like
Iām not sure Iād run a digital ballast off a sonoff plug. Mind you you could run a contactor okā¦
The plugs support 10A (2200W ish) the TH16 16Aā¦ I run my humidifier off the th16 and a 2KW shed heater off the plug 
1 Like
Yes fraid soā¦ but you could adjust the timer for your stagger from your sofa 
1 Like
Currently building a cob/solstrip hybrid so wouldnāt be running a ballast just drivers off the sonoff and adding a secondary rocker switch between as a manual override Kinda thing. Cobs already on the way 5 x cluo38 1206 3000k and 5x cluo38 3500k. (Bloom light) and holders. Frames built already Hlg150h24a ordered today to power 4 x 5000k solstix x1 (basically a veg light) the solstix are reserved until the end of the month. Need to order a hlg320h c700a to run the cobs. And arctic alpine f11 plus heatsinks x 10. Still looking for the best driver to run all of them they run on 12v 0.22a each. Iām aiming for a custom spectrum light. Both aspects will be dimmable.
Sorry about the essay lol
3 Likes
Hey @anon58740919ā¦
That essay was really useful 
Ive been meaning to find out about this LED lark for a whileā¦lol
You gave me enough product references there to give me a good start, with googles help of course So in easy to understand words how would that compare in wattage (I really mean brighness, equiv to a 1000W or 600W standard HPS for example), and whats your expected current draw?, It looks like an expensive venture and very DIY, even the solstix kits need work So what is the overall benefit of LEDs, I bet I can think of a couple, more and better distribution of light, light intensityā¦ im sure the list goes on Cant wait to see your finished set upā¦ see how neat you can make it 
2 Likes
Glad I gave you enough of an insight to pursue it far enough as to start looking for parts yourself.
Itās not my first light build but itās the first time Iām using solstix. My last light was very much bloom orientated.
Rule of thumb using led is 37w sq ft Iām in a 4x2 tent so Iāll be aiming to run about 300w. Everything you just listed was enough to sell me on the idea when I first started looking. Plus lower heat. And variable power. (I know there are switching ballasts etc but itās not the same)
All in all my light running full whack including fans will be close to the 500w mark. It wonāt be run anywhere near that primarily though bro
2 Likes
Interesting, based on that id need appx 250W, would you mix grow and bloom light frequencies all the way through? or would you only use the right ends of the spectrum for each stage?
I think Id miss the heat thoā¦ the light is about all thats keeping the plants warm overnightā¦and it ensures ventilation cos its temperature linked to my exhaust fan
Some compromises in switching overā¦ Or I kick the mrs and kids out and move the grow into my house
2 Likes
Yes yes all the way yes. Have a read up on fluence led test when you get a minute. People are getting really good results adding more blue spectrum in bloom. Thatās whatās inspired the cob/solstrip combo. Power output is so variable gives a massive amount of scope to dial in your environment and cycles. And that heat you say youāll miss will be your worst enemy come summertime in an uninsulated shed bro same as an attic. At least with led if we have a slightly warm week uk style where pensioners die in Blackpool pier from sun stroke kinda weather. Youāll be glad of the dimming function.
Edit. Maybe not a yes to kicking the mrs and kids out though lol
1 Like
So why do People run 1000watt Light in 4x4 space? Which is 62w per sq ftā¦
Confused right now 
are they Just wasting energy?
1 Like
Because theyre using hps. Less efficient than led mate
And for hps that would technically be under power 1000w/M2 for hps.
3 Likes
Iām going to do a bit of bragging and drop some personal bombs of opinions Iāve accumulated so far.
LEDsā¦ WHY?
- More Lumen Per Watt. You basically get more light for your watt used.
- The heat is still there, but easier to deal with since Itās not emitted via IR wavelength. A watt of heat is still a Watt.
- multiple points of origin - Way better penetration/distribution due to having multiple sources of light.
- LEDS are directional, where as conventional bulbs emit in 360 degrees. Reflected light isnāt as intense, so in reality youāre wasting 180 degrees of light potential. (Inverse square law)
- White LED contains a good amount of the spectrum needed. (There are some good threads with way more technical data to back up this claim)
And some personal observances.
3500k is a damn good all around color temp for LEDs. Enough blue to keep plants short and squat, but enough red to promote goodie production.
I easily hit above 1gpw once I switched to LEDs. And iām a Farkin Noob, my results will only get better.
320W of LED has the potential to hit 1 lb+ (i was only 2.25 ounces shy of a full pound out of 3 plants in a 2āx3āx3ā micro cab)
Flexibility, dimming options, color choices, more efficient drivers, size and shape customization. No large Air Cooled Hood needed.
Only con is initial cost. But, once you buy em, by the time they burn out or become less effective, there will be even more advanced LED technology out there.
As a personal opinion that isnāt backed by anything but speculation, 300w of LED will do everything 600w of HPS will do. Good LEDs need half the wattage to achieve the same results over HID lighting imo.
9 Likes
Preachā¦much more eloquently put than myself there jelly. And your maths stacks up well too. 300 watt to replace 600w hps in a 2 x 4. 600 to a 1200 in 4 x 4.
I donāt think going as far as saying that led are twice as efficient as hps is too.far from the truth
2 Likes