LED's

[Mazatec]

Yeh, Natchya, well, that's the word on the street, but I've been seen evidence that disproves that. It seems the good ones are 3watt each diode and are made in the USA and cost a lot. But I believe MH and HPS will soon become a thing of the past. Also if you care about the environment - I really don't want to leave a big carbon footprint from the coal that's needed to produce electricity. Efficient LED's can reduce electricity between 10-20% and less including your cooling costsl! Edited October 4, 2011 by Mazatec

[Mazatec]

LED's are shit! i just tried one for two weeks and sold it it does grow plants but slowly and the cooling fans on the LED light are loud as all fuck i wont buy another LED light in a hurry the ones coming out of china are over rated mine was rated at 120watts i measured the power it was drawing 90watts thats 3/4th the power stated meaning they are not true 1watt LED's i used a light meter to check how bright the LED light was and its as bright as a 150-200w MH/HPS a 250w HPS shits all over the LED the LED was reading around 1900-2100 lux where as the 250w HPS reads 3000 lux at the same height the LED only covers a small area its not designed to spread light out over a certain area like a MH/HPS does so the LED light basically covers whats directly under the LED globes my 120w LED light would have covered a space of 2x1.5 foot maybe pushing 2x2 foot for a $170+ light its just ridiculous

 

That's good info Gazza, thx 4 that - especially the lux comparisons. I'm using a 250 w HPS for 2 plants in a growdrobe. The ad's for the 90w UFO LED's say that the light angle is 120 degrees. Need 40 watt per sq ft I think.

Edited October 4, 2011 by Mazatec

[The Hash Nibbler]

Yeh, Natchya, well, that's the word on the street, but I've been seen evidence that disproves that. It seems the good ones are 3watt each diode and are made in the USA and cost a lot. But I believe MH and HPS will soon become a thing of the past. Also if you care about the environment - I really don't want to leave a big carbon footprint from the coal that's needed to produce electricity. Efficient LED's can reduce electricity between 10-20% and less including your cooling costsl!

 

Heya Maza, seen evidence in real life of them working good, or some videos on Pootube?

Unless they running 3-5W Cree led's they bloody hopeless. I've seen real life led grows ........very dissapointing.

I hold an electronics cert, so they promise a lot and deliver little, thats the skinny.

In 10 years NOBODY has got the spectrums right yet. Wave of the future? Not going to happen.

If you want to invest in the future of lighting invest in a sulpher plasma lamp, thats not got the correct spectrum either, but still better than LED.

If you wanna be green, make a greenbouse and grow outside. Carbon footprint...... I'd like to put one of those on the arses of people who supply cheap LED systems on ebay.

Mh and Hps been around a long time, thats true. But it's because they work and produce the results where as the "NEW" lighting of the future left plenty of people out of pocket and made a lot of budget manufacturing plants in china very rich.

I'll stick to what works. Peace. Gh72

[Gazza2001au]

your better off with your 250w HPS the noise that comes off the LED's fans is loud just think when your computer is fully loaded up times that noise by 3 and thats how loud the LED lights are i swapped my LED light for a 250w HPS and i half the fan noise in my grow room

[Mazatec]

your better off with your 250w HPS the noise that comes off the LED's fans is loud just think when your computer is fully loaded up times that noise by 3 and thats how loud the LED lights are i swapped my LED light for a 250w HPS and i half the fan noise in my grow room

 

 

 

thx ... wow i have excruciating sound-sensitive tinnitus from playing in a rock band when i was a teenager - loud hissing in my ears and kaya helps me sleep amongst other positive benefits ... i have two $20 bunnings fans and i think they're loud .... thx for the heads up ... even tho most led sellers say their fans are quiet - what's quiet to them prob sounds like heavy rain to me

[Naycha]

One thing it seems that you may not have considered is that if someone os trying to sell you something it is most likely they are going to say whatever they have to to make you buy it, eg, 'it's really quiet', 'doesn't make any heat', 'wave of the future', etc. etc.

 

Not sayin don't go for it, just saying 'buyer beware' don't trust everything a seller tells you.

 

Naycha

[Mazatec]

Heya Maza, seen evidence in real life of them working good, or some videos on Pootube?

Unless they running 3-5W Cree led's they bloody hopeless. I've seen real life led grows ........very dissapointing.

I hold an electronics cert, so they promise a lot and deliver little, thats the skinny.

In 10 years NOBODY has got the spectrums right yet. Wave of the future? Not going to happen.

If you want to invest in the future of lighting invest in a sulpher plasma lamp, thats not got the correct spectrum either, but still better than LED.

If you wanna be green, make a greenbouse and grow outside. Carbon footprint...... I'd like to put one of those on the arses of people who supply cheap LED systems on ebay.

Mh and Hps been around a long time, thats true. But it's because they work and produce the results where as the "NEW" lighting of the future left plenty of people out of pocket and made a lot of budget manufacturing plants in china very rich.

I'll stick to what works. Peace. Gh72

 

 

Hey, Grasshopper ... yeh, so far from what i've researched 3w diodes are min, if at all ... have you checked out Gotham Hydroponics on U tube ? ... they r the only ones who seem 2 b on the right track with 420nm, 450nm, veg/blue and 630nm and 660nm/red wavelengths for flowering, they demonstrate with a par meter and compare, but with Chinese -design/manufactured equivalents (not hps, mh, sodium plasma)... my prob is small living space in multi-storey block, 12th fl, top .... no air cond .... summer is a sweat box ... rather spend what $ i have on growing than air con ... but either way i need 2 face the fact and save/borrow to buy an air con that is not noisy - for the sake of the plants, i can get by with a fan ... also the feedback i'm getting is the coverage factor - that led's have small coverage parameters, meaning you need lots of them ... real expensive .... but for me, one USA manufactured (assembled in China) 100w LED might do the trick for growing 1 or 2 max plants at any one time....? in the meantime thx 4 your tip - i'll check out sulpher plasma , peace ..

Edited October 6, 2011 by Mazatec

[Mazatec]

One thing it seems that you may not have considered is that if someone os trying to sell you something it is most likely they are going to say whatever they have to to make you buy it, eg, 'it's really quiet', 'doesn't make any heat', 'wave of the future', etc. etc.

 

Not sayin don't go for it, just saying 'buyer beware' don't trust everything a seller tells you.

 

Naycha

 

 

 

 

Naycha ... you give good advice ... i've found that 99% of LED grow lights are not up to par (no pun intended) ... but check out Gotham Hydroponics (Suffern, New York) on U Tube ... those guys seem to know what they're doing, and admit that for eg. a 90w LED is in no way equivalent to a 400w hps ... they demonstrate with a par meter that measures photosythesis according to lumen content (i think?) ... on their site they do admit that a 90 or 100 watt LED, even with 2watt diodes only covers an area of 3-4 sq ft ... if it's really the case - i only need to grow one or 2 plants at a time ... so, for larger grows it would run into hundreds, more likely thousands of $ if using LED's but for small grows they deliver the right spectrum for chlorophyll production, growth, photosythesis etc - with no wasted lumens ... at least that's what i'm being told .....

 

Maza

 

 

ps: my avatar is meant to be viewed with cyan(blue)/red 3D glasses ...

Edited October 6, 2011 by Mazatec

[Mazatec]

Naycha ... you give good advice ... i've found that 99% of LED grow lights are not up to par (no pun intended) ... but check out Gotham Hydroponics (Suffern, New York) on U Tube ... those guys seem to know what they're doing, and admit that for eg. a 90w LED is in no way equivalent to a 400w hps ... they demonstrate with a par meter that measures photosythesis according to lumen content (i think?) ... on their site they do admit that a 90 or 100 watt LED, even with 2watt diodes only covers an area of 3-4 sq ft ... if it's really the case - i only need to grow one or 2 plants at a time ... so, for larger grows it would run into hundreds, more likely thousands of $ if using LED's but for small grows they deliver the right spectrum for chlorophyll production, growth, photosythesis etc - with no wasted lumens ... at least that's what i'm being told .....

 

Maza

 

ps: my avatar is meant to be viewed with cyan(blue)/red 3D glasses ...

[Gazza2001au]

this is the LED light i had to compare the fans its like the 3 LED fans are louder than my single 12cm sunon fan and there is no way of quietening the LED fans they run full bore the whole time also u wont be able to use coco as your growing system as i had problems with mould growing on the coco it just wasnt drying out as the LED produced no heat i have a little 150w MH 3000k bulb (complete light with control gear) if u wanna buy it for $50 plus delivery dont waste your money on LED there shit and way over priced

Edited October 6, 2011 by Gazza2001au