Lighting LEDs direct from china

[Margahooja]

Hi everyone. I'm a newbie to the led world, and thanks for the info. I currently have 2 flowering under an Ocean revive 400 doing great. I burned them first thing but they recovered after moving the light up. 194 watts running. The Mars hydro 600 is next.I just checked the draw wattage. On veg it is 254, on both it is 383watts. A lot of reds come on when the flower switch is on. Bright? Oh yeah.
Winter doldrums have started around here, I wonder if this light would be good for brightening up peoples spirits. Seeing that I don't need it for a grow right now, tomorrow I'm going to hang it up and see. I have 1 woman,2 cats, and a jack russel for subjects. I love practical experiments! Stay tuned.

The Mars Hydro 600 you are referring to, is that the 192x3 reflector. I just got one and its pulling 225 in veg and 338 watts when in flower. I was kind of expecting a little more than 338. It states 370 give or take 5 %. I guess I'm bickering over 15 watts or so on the low side. Other than that I do like it. Fans are quiet, compared to my 400 watt hps, there's virtually no heat in a 4x4 tent.

 

[pop22]

I just bought a watt-watt/hour meter and have been checking my lights. My Mars Hydro 180 watt UFO draws 120 watts. My two, 300 watt old style Mars Hydro draw 192 and 189 watts. And it helped me discover that my "900 watt" generic was a rip off as it was drawing just 247 watts! I filed a complaint with ebay and requested a refund. I'll save some money and in a couple months Ill get either a 900 or a 1200 watt Mars II.

 

[Margahooja]

I just bought one of those kill a watt devices. If anyone in USA wants one, they sell them at Harbor Freight Stores around 25 bucks and usually you can get a 20% coupon so 20 bucks. It's an interesting gadget.
I see Menards and Home Depot have them too, about 20 bucks.

 

[SUPERWEED]

Hello Afn hope everyone has a nice Friday 13 hehe


little wonder how it looks with LED lights from China.


which are the best suppliers?


what is the best spectrum?


have a friend who will buy lamps from china so I try to help him a little.


but think you can help him better than I can ..


I myself will buy the new GN someone who has tested it personally, besides the master TANG hahaha

have a nice day


:karma Cloud::Smoke more Dope:

 

[lax123]

what is the best spectrum?

[SUB]swedish University of agricultural sciences SLU, Dr. Bergstrand

[/SUB]
Id go all Warmwhite with a little mixed in reds 630nm/660nm, as chinese warm whites tend to be a little more on the blue side and lack a bit in red, even when its warm White.

Edit: I saw somewhere some Panels here in a grow, I think it was astir. Copy their spectrum, looks like they did their homework..

 

[SUPERWEED]

tnx lax
so u think astir is the choice 4 my m8 ?




View attachment 422165


[SUB]swedish University of agricultural sciences SLU, Dr. Bergstrand

[/SUB]
Id go all Warmwhite with a little mixed in reds 630nm/660nm, as chinese warm whites tend to be a little more on the blue side and lack a bit in red, even when its warm White.

Edit: I saw somewhere some Panels here in a grow, I think it was astir. Copy their spectrum, looks like they did their homework..[/QUOTE]

 

[lax123]

Sometimes with those chinese Panel sellers you can get your own configuration for spectrum. I dont know how much it is extra.
I think an astir is too expensive for its value.
Personally I also would not get any blackstar, Apollo, hydro, cidly, Mars etcs...even that astir, its cheap years old tech epistar/epiled diodes after all. All they change is the desciption "brand new tech/ new leds 2015". If he must have them, id check alibaba -same stuff costs only a fraction there.
They could improve the Panels by putting Drivers in with lower current. E.g. run those leds with 0,5W-1W per Piece. But "more watt" sells better, even if it decreased led Efficiency greatly.

There are some interesting looking cree Stadium floodlights on alibaba. But I cant tell you if its the real deal and if they really put cree inside.
Otherwise look at panels utilizing Cree/ Osram/ Phillips if you want Quality.

 

[SUPERWEED]

tnx lax again


thank you for explaining ..
yes he was going to buy bulbs from alibaba.


but he do not really know which provider to trust or how spectrumet should be


so I promised to check with some others what they think (AFN)
You are still more expert on this with led lights and spectrum and suppliers to many of you use lights from China.


one can learn from others I have learned and therefore I try to find something good to him.


he has not the world's biggest budget but he would like to have new LED lights and I do well there must be someone from China who are more serious than others and produce "quality"




in the end I can only give him advice and he gets to make the decision all by himself.




thanks for the reply LAX


hope we get some more information during the day on a good china supplier

Sometimes with those chinese Panel sellers you can get your own configuration for spectrum. I dont know how much it is extra.
I think an astir is too expensive for its value.
Personally I also would not get any blackstar, Apollo, hydro, cidly, Mars etcs...even that astir, its cheap years old tech epistar/epiled diodes after all. All they change is the desciption "brand new tech/ new leds 2015". If he must have them, id check alibaba -same stuff costs only a fraction there.
They could improve the Panels by putting Drivers in with lower current. E.g. run those leds with 0,5W-1W per Piece. But "more watt" sells better, even if it decreased led Efficiency greatly.

There are some interesting looking cree Stadium floodlights on alibaba. But I cant tell you if its the real deal and if they really put cree inside.
Otherwise look at panels utilizing Cree/ Osram/ Phillips if you want Quality.

 

[lax123]

not particularly this, but maybe this style isnt too bad
http://www.alibaba.com/product-detail/600w-green-house-led-grow-lighting_1927638676.html

I think it has no extra lenses, which I think is good. Because lenses or anything you put in front of a led takes out a portion of the light. I think for glass its at least 8%...with the chinese parts its certainly more.
And it has nice reflectors. But instead of one large panel id always get several small ones, so you can put each light closer to the canopy and spread light more evenly.
And all those blue leds and such id change for warmwhite + reds.

 

[Bilbo]

Tell your mate not to overthink it, get a panel or two that he has seen evidence of someone using, i.e. a grow log and once he's got used to LED growing he can start fiddling around with custom spectrums, CO2, UVB or any of the other endless things that might help an expert grower increase their yields by a few percent.

None of these thing will make a difference until you have figured out how to manage the basics properly - nutes, ph ranging, canopy temp, calmag, air circulation, water temp, light height.

Each one of these individually affects the others to the extent that if, for example your ph isn't cycled from 5.2 to 6.2 to allow the plant to absorb different compounds at different ph levels then no amount of custom spec lights will make the slightest bit of difference to why you get 50% lower yields than you could/should have!