homemade led light that I posted somewhere else

[ZAPOT]

Hi!

Anyone over here knows any suitable leds for blooming only that run so hot that there is no real market for those yet but those leds still are available to get? I would like to convert Zalman´s Reserator 1 into a special heatsink for leds like that to get some real photons out of leds. Even just 1/10th of the "50 000 hours" is just really fine by me. I want the power for even one excellent crop per one swappable led module.

btw. Nice job on your leds! It should bring some nice results.

 

[woolybear]

A driver /driver solution that can handle 200+ watts is something I'd be interested in. Not sure if knna's built any arrays that big?

I've put in an order to build a set of LED veg lites, using the driver from advanced hydro nutes. In my current grow I'm using a growledhydro spectra 300, I am happy with the results so far - I'm wondering what kind of driver it uses now. Hmm!

For this driver, I find it wierd it states a power range vs just saying the max power. So this thing can handle 40v (28w) and was $18.50... so for 200w I would need 7 of these, $140; is that a decent price?

High Power LED Driver
1. HPD(High Power LED Driver) series are designed for driving High Power LEDs.
2. They are constant current drivers, which provide High Power LED with constant current while operating.
3. HPD015B-F7040ADJ-CE 20~40V/100~700mA (1-3) watt x (6~10) pcs

 

[sm0k4]

A driver /driver solution that can handle 200+ watts is something I'd be interested in. Not sure if knna's built any arrays that big?

I've put in an order to build a set of LED veg lites, using the driver from advanced hydro nutes. In my current grow I'm using a growledhydro spectra 300, I am happy with the results so far - I'm wondering what kind of driver it uses now. Hmm!

For this driver, I find it wierd it states a power range vs just saying the max power. So this thing can handle 40v (28w) and was $18.50... so for 200w I would need 7 of these, $140; is that a decent price?

High Power LED Driver
1. HPD(High Power LED Driver) series are designed for driving High Power LEDs.
2. They are constant current drivers, which provide High Power LED with constant current while operating.
3. HPD015B-F7040ADJ-CE 20~40V/100~700mA (1-3) watt x (6~10) pcs

140 isn't bad for buying them. You can always design your own to cut costs. If you wanted less drivers, check out the 60 Watt Mean Well constant current drivers also. You would need 3 of them plus that one then.

 

[Weezard]

Indigent lizards build dey own!

Indigent lizards build dey own!

140 isn't bad for buying them. You can always design your own to cut costs. If you wanted less drivers, check out the 60 Watt Mean Well constant current drivers also. You would need 3 of them plus that one then.

Here's da rock-bottom cheap way.


This one drives a 15W. blue emitter.
For that use it is not very efficient, but is cheap and reliable.
It will drive long series strings just as easily, because it limits current and only needs a few volts of headroom to do so.

It does require a voltage regulated supply.
I find laptop power supplies to be ideal.
Especially the old surplus ones.
(The old laptops used more power)

Power dissipation is the diff between Vin and Vout multiplied by .35, or .7 Amps. in your case.

Mine's an ~ 5V.drop @ 1.1A for a 15W. blue emitter.
So 5 X 1.1 = 5.5W. lost as heat in the regulator.
Not so good for one diode.
However, it will control as many emitters in series as you have the voltage to support at the same dissipation that it has for one emitter.

Think about that.

Jus' 2 shiny pennies in da dirt.

Aloha,
Weezard

 

[woolybear]

Thanks for the info Weezard! I will need to take eletrics and wiring 101 before I can handle build off of schematics lol...

Did a bit of searching, it looks like the 60w Xitanium drivers go for $25-30 on --auction dioyyrddydrd. A lot of four just went for $120, thats 240w for $120, best price I've seen so far!

Regular sites seem to want $100+ EACH for the 60w. Its kind of hard to find these!

 

[sm0k4]

Right on. Good old v-reg chip. How warm does that 10 Watt resistor get?

 

[sm0k4]

Thanks for the info Weezard! I will need to take eletrics and wiring 101 before I can handle build off of schematics lol...

Did a bit of searching, it looks like the 60w Xitanium drivers go for $25-30 on --auction dioyyrddydrd. A lot of four just went for $120, thats 240w for $120, best price I've seen so far!

Regular sites seem to want $100+ EACH for the 60w. Its kind of hard to find these!

not really. Just gotta look in the right places. I've read about other DIYers ordering from DealExtreme. They have lots of drivers there at cheap prices. Who knows on quality though, probably cheap Chinese OEM versions without cases, but whatever works.

 

[asa77sol]

deleted post

 

[sm0k4]

I have utilized the CAT4101 IC. Its cheap and only requires two external components. So far its the cheapest cost per watt I found. Pretty much the same cost as the 317 regulator, but would be more efficient. I have also had 12 boards made with three drivers each. They will mount nicely in my power box of the grow cab along side the switch mode power supplies.