procyon-100 100W LED Grow Light

i would take that 600 bucks and instead of the led, i would get a 600w or even a 400w digital switchable ballast with an aircooled hood and a nice vortex or valueline inline fan and save some money or break even but get more yield in the end.
i realize your concerned about electricity useage but a 400 watt and an inline fan wont raise the bill by that much compared to the finished product.

well if you dont want have to vent and dont mind spending the extra fro the led then i would go with the led for veg only since it uses less energy and u dont have to air cool and then you dont have to cut holes anywhere and therere isnt the loud noise of a inline fan or if you want a happy medium go with som hi t5s

think again they are shit!total waste of money if anyone tells you otherwise they are trying to sell you them = LED sales men.

Originally Posted by 9inch bigbud

think again they are shit!total waste of money if anyone tells you otherwise they are trying to sell you them = LED sales men.

hi guys, i am new in the forum but an expert in DIY. i have read many LED vs HPS . so please read carefully my calculatios. and make your own decisions

example:
ordinary 600w Max-Lumens SHP-TS HPS 600W : 90000 (lm)
25 euro ebay only the lamp
versus
one of the best brand name LED available. not some chinese ones that claim only llumens
Cree MC-E Emitter white - BIN MCE4WT-A2-0000-000KA1 Luminous flux by connecting all 4 chips in series:
min. 280 lm at 350mA
max. 490 lm at 700mA
basicaly for you to understand a 5w led emits depending from the current 100-to 240 lumens. this one is 4 leds in one
its one of the brightest available
here is link with more datahttp://www.dotlight.de/products/en/L...490-Lumen.html

and don't be fooled. power means heat and this heat should be dissipitated somwhere. this with the cool led light is a fiction.
look what they say for that led
Please ensure a sufficient cooling !
This LED can only be operated with an additional heat sink
Caution: The MCPCB can get very hot (~70 °C).
Device failure caused by overheating voids warranty

so, do you understand. if it makes real lumens it makes heat even if its LED. and if it doesnt make heat it doesnt make lumens and it is a scam

ok. lets calculate how many Leds we need to make equivalent of 90000 lumens. we asume that The brand led can make 500 lumens though it makes less. so

90000/500=180 Led x19euro=

3420euro

even if you get them at discount half price its still a lot of money and it needs to be powered by sth.

and this is the best case. the 5w Led which they have in the necessary wave spectre produces 100-250lumens

i wrote this calculation cause i did not see it any where in internet and i believe it would be usefull for you to decide Led or no

even if i am wrong and there are ssome even better Leds they would not be far more better so the answer is the same.

sun and HPS

If you want to go with LEDs look into building your own it'll be a hell of alot cheaper and you can use newer technologies (Procyons have been around a couple years) Also don't buy into the manufacturers claims of HID equivalency, sure LEDs are more efficient in energy when used correctly, but hardly 3-4x as efficient. Maybe 2x if your using them as efficiently as possible (spaced out correctly, close as possible to your plants.)

But by all means join the rest of us in testing out LEDs for the future. There will always be naysayers no matter what you do when it comes to new ideas, they'd rather just sit back and ridicule the technology until it becomes viable and then just hop on the bandwagon. Decades ago when growers headed indoors for the 1st time, there had to be plenty of people saying the same things then. Similarly even more recently within our own decade CFL growers went through the same. Without pioneers trying out new things then nothing ever changes, so if you do decide to go with LEDs in whatever setup I commend you!

Originally Posted by costademaria

hi guys, i am new in the forum but an expert in DIY. i have read many LED vs HPS . so please read carefully my calculatios. and make your own decisions

example:
ordinary 600w Max-Lumens SHP-TS HPS 600W : 90000 (lm)
25 euro ebay only the lamp
versus
one of the best brand name LED available. not some chinese ones that claim only llumens
Cree MC-E Emitter white - BIN MCE4WT-A2-0000-000KA1 Luminous flux by connecting all 4 chips in series:
min. 280 lm at 350mA
max. 490 lm at 700mA
basicaly for you to understand a 5w led emits depending from the current 100-to 240 lumens. this one is 4 leds in one
its one of the brightest available
here is link with more datahttp://www.dotlight.de/products/en/L...490-Lumen.html

and don't be fooled. power means heat and this heat should be dissipitated somwhere. this with the cool led light is a fiction.
look what they say for that led
Please ensure a sufficient cooling !
This LED can only be operated with an additional heat sink
Caution: The MCPCB can get very hot (~70 °C).
Device failure caused by overheating voids warranty

so, do you understand. if it makes real lumens it makes heat even if its LED. and if it doesnt make heat it doesnt make lumens and it is a scam

ok. lets calculate how many Leds we need to make equivalent of 90000 lumens. we asume that The brand led can make 500 lumens though it makes less. so

90000/500=180 Led x19euro=

3420euro

even if you get them at discount half price its still a lot of money and it needs to be powered by sth.

and this is the best case. the 5w Led which they have in the necessary wave spectre produces 100-250lumens

i wrote this calculation cause i did not see it any where in internet and i believe it would be usefull for you to decide Led or no

even if i am wrong and there are ssome even better Leds they would not be far more better so the answer is the same.

sun and HPS

I think your math would apply more if luminosity effected plant growth that much but it really doesn't.... For example your normal 42w CFL produces 65000 lux when hung about 4-6in above your plant. Go to this link http://www.creatiesintechniek.nl/Led/test2.html his setup is 60w and he hangs it 2 feet above (very inefficient imo) and it produces only 5000 lux at the plants (as shown in the photo at bottom of page) but he still ends up producing 53g. And before you go criticizing the time period like others have read the dates accurately I know its confusing as hell but basically 2.5 weeks vegging 9 weeks flowering. That journal is a year old too, and hes only using 2w bulbs.

buy a 600 watt hps air cooled hood and fan, dont try unproven crap. If you can buy T5 for vegging, amazing resultsIMG_1748.jpg without hi electric bills.

Originally Posted by hazetastic808

I think your math would apply more if luminosity effected plant growth that much but it really doesn't.... For example your normal 42w CFL produces 65000 lux when hung about 4-6in above your plant. Go to this link http://www.creatiesintechniek.nl/Led/test2.html his setup is 60w and he hangs it 2 feet above (very inefficient imo) and it produces only 5000 lux at the plants (as shown in the photo at bottom of page) but he still ends up producing 53g. And before you go criticizing the time period like others have read the dates accurately I know its confusing as hell but basically 2.5 weeks vegging 9 weeks flowering. That journal is a year old too, and hes only using 2w bulbs.

LMFAO ROLF spat my stella artois an the screen! unless you know what the fuck you are talking about then please shut up!

i bet you are a paper grower in other words you look at a pice of paper and say this will be better, but never grow fuxk all in practice!

LED is a waste of time! show me one picture where a cannabis plant looks good grown under LED? there are none thats why! LED growers start serching google untill you die you wil not find onel