The far red thread

Yodaweed

Well-Known Member
This is 23 page's of multiple times being said how little of it is needed.
You don't even have ANY evidence this has any bearing on anything, you are just talking out your ass. Some of these posters went as far as saying this is counter productive to photosyntisis....so you have no clue, seems like a total waste of time/money/effort/electric.
 

Yodaweed

Well-Known Member
I concur with my fellow grower; I'm led to believe that 730nm during lights on is counterproductive to the photochrome process.
I have noted that the Emerson effect increased stretch in leafy greens thereby creating more surface area for photosynthesis, so point taken and unsure of how it will affect cannabis in veg or flower... would like to find out at some point.
 

Airwalker16

Well-Known Member
I finished my far red bar. I used 6 x solderless 730nm xpes on a 30 x 2" HSUSA profile. Right now I'm using an old modem power source @900mA. It doesn not get even a lil bit warm. I attached it to my aluminum frame with zip ties. Fastest bar build ever.
You get your solderless diodes from the same site as Banana444? Or what?
 

testiclees

Well-Known Member
You don't even have ANY evidence this has any bearing on anything, you are just talking out your ass. Some of these posters went as far as saying this is counter productive to photosyntisis....so you have no clue, seems like a total waste of time/money/effort/electric.
No. Dude you are unmistakably the ass speaker here. The literature has plenty of 730nm papers.you havent bothered to check, then you mock someone and follow that up with incorrect assertions. Really stfu your full of rude ass ignorance.

@Airwalker16 rapidled I used the link that purplebuz provided a few pages back.
 

VegasWinner

Well-Known Member
....normally oslons are used at 700 mA... ...they show these drivers with her grow module (7 oslons)...

Power Supply for 5-8x 3W LEDs (230V)

Meanwell Power Supply 700mA (9-48V) IP67

https://www.led-tech.de/en/High-Pow...dul-with-7x-OSRAM-SSL-80-LT-2499_206_209.html

....you dont want run your leds at vmax... we normally use vtyp...

...vtyp for oslons far red...1,85 v... 11 or 12 v for 6 oslons far red...

https://www.led-tech.de/en/High-Power-LEDs-Osram/Osram-Oslon--SSL/OSRAM-Oslon-SSL-80-Far-Red-on-Star-LT-2520_206_207.html

....6 on your zone at 700 mA its a bit too much for my inexpert pov... maybe 4.... but seems to me 5 its minimum for these drivers...

...my inexpert pov...

...off course you can run your leds at 350 mA too... im only show you... what they use with oslons...

....on other thing... thanks bro Abiqua... on far reds ...730 nm ...oslons and ledengines... my inexpert pov...;)....

...oslons with good mcpcbs and good hs runing at 1 A... if they run for short times.... ...maybe other crazy idea... you know its friday...

...lol..or cheap chinese only need few... and change few star leds... to mantain an old traditions... ;)

pd... maybe one meanwell lpc 20-350 for 6 oslons (or other star far red led) or more at 350... ...

:peace:

Saludos
I have selected a LPC-60-1050A because I am using 12 3W Far red Diodes and three Royal Blue 3W for a total of 54W and 39.6V.
peace
 

VegasWinner

Well-Known Member
I got two of these:
http://www.mouser.com/ds/2/228/LZ1-00R300-21744.pdf

The problem is that when I hook them up to a 600mA 4-12V driver, one of the leds pulse with a dim light and the other is not responding.
I figured there was something wrong with those leds and ordered two more. However I don't want to test them before I know what went wrong with the first two.
Any thoughts?
LED requires 1000mA, per page 4, and you provided 600mA need 400mA more in that driver/power supply. Need more power Scotty!
peace.
 

BobCajun

Well-Known Member
I just used a 60w incandescent blacklight. If you find a spectrum chart you'll see that it's almost all far red. It has to be the incandescent kind though, not CFL. I used it for the last 2 weeks of flower to force ripening. Seemed to work. There was no significant elongation in the buds. I know incandescents are very inefficient, but it's only on for 5 minutes anyway.
 

MrTwist1

Well-Known Member
I decided to go with one of these 730nm cobs from ebay http://www.ebay.co.uk/itm/361039086548?_trksid=p2060353.m1438.l2649&ssPageName=STRK:MEBIDX:IT

...with the plan to solder it into a cheap 10w LED floodlight fixture from my local hardware store (as discussed earlier). It seems like the driver in the floodlight is rated at 30v-36v 300mA 10w while the ebay cob I ordered is rated at 4v-5v 1050mA 10w. It seems like these are not well matched but will it work at all? Or do I need to source another driver? Any help much appreciated. cheers
 

MrTwist1

Well-Known Member
That looks great, you could power cobs, far reds, and some pc fans all from one source

Edit: just read some reviews about it and it was mentioned that if the power goes out it defaults to off when power is restored until the next time the timer turns on. This may not be an issue for far reds as they only run for a short bit. For a flowering timer it could cause issues if you can't turn it back on after a power outage. Something to keep in mind if you plan on using one
Actually I can confirm that this is actually the case... far from ideal for me as I live in an area where power outages are a daily occurrence! Thankfully these power outages are almost always momentary, so I fixed the problem with the addition of a very small UPS before the timer. It's a shame that such a well featured timer has such a simple design flaw, but such is life I suppose.
 

AquariusPanta

Well-Known Member
I decided to go with one of these 730nm cobs from ebay http://www.ebay.co.uk/itm/361039086548?_trksid=p2060353.m1438.l2649&ssPageName=STRK:MEBIDX:IT

...with the plan to solder it into a cheap 10w LED floodlight fixture from my local hardware store (as discussed earlier). It seems like the driver in the floodlight is rated at 30v-36v 300mA 10w while the ebay cob I ordered is rated at 4v-5v 1050mA 10w. It seems like these are not well matched but will it work at all? Or do I need to source another driver? Any help much appreciated. cheers
You're going to want to find a smaller driver with a lower, wider range for your 5V cob UNLESS you run a few of them in series. You'd need like 6~7 of your 5V cobs to work with that floodlight driver but the current from the driver, if it's constant, may be an issue for your cobs in that it doesn't support enough juice. You may be better of finding a different driver.
 
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