It is not only about the electricity.

High quality strips like EB2 have longer life span, better spectrum and much better light distribution

unkle_psycho wrote: ↑

Sun Oct 28, 2018 10:08 am

It's quite sad that non of the chinese makers would just sell their product as the lm651b. Loosing your credibility to front such a small difference is pretty short sighted.

what? are you saying that I am not going to receive a genuine pair of Air Jordan from them?!

In the US you have many options and buying off china/alibaba is not always the best option money wise

saintminer wrote: ↑

Fri Oct 26, 2018 3:09 pm

And has anybody tried those 800 boards out? Im curious everytime I see them but keep seeing mixed reviews of meijiu (diodes damaged during shipping and customer service issues mainly)

https://www.rollitup.org/t/diy-fotop-gr ... 18.960546/

Pardon me, got no time atm but
Meijiu (alibaba seller) has some 800 leds boards that can be run at 200w without heatsink, you could save a lot on shipping costs

What dimmer are you using?

Did you get it from Alibaba?

unkle_psycho wrote: ↑

Thu Oct 18, 2018 6:17 am

How much is that 800 diode QB from china? I think I saw it sold for 70$ at meiju in alibaba??

If the board is that cheap, I would avoid the heatsink and put more boards. 3 of those in a 4x4 would be pretty sweet

Should be 70-90usd for the "lm561c" version
I would never get heatsinks off Alibaba

What is an MCU and multiplexer? I don't really want to step down voltage. The strips already come as 24v strips. (8 diodes, 3v each) I don't have any particular preference of how the strips should be arranged. All I know is that I want ~250 lumens per strip and I want them as efficient as I can pra...

Anything between driver and strips will lower efficiency. But why would you want to step down the voltage? just put 2x 12v strips in series and you get 24volts, rest of the strips in parallel and you're good to go. You can modify its brightness through PWM. But you can't individually switch off stri...

I see on that page I can get the 800 v2 with a heatsink and driver for 264, would I be better off getting just that one for my flower tent? It would save me and extra $60ish. Or get the 800 and a 288 for my flower. Ideally i'd only end up ordering from china one time, cause that shipping is crazy e...