[lostenspace]

subscribed, watching closely. I have been eyeballin the rapidled site for a month. I am undecided on what i want to use. Good luck with your assembly.

[analogue]

[tenthirty]

Well, I used the led tester and tested all the diodes. The red ones actually hurt a little when tested. The white ones seem about the same as a point and shoot flash.
These things are damn bright!

If these things turn out to be a couple of magnitudes brighter than my existing pro-grows..... I don't know if I should be happy or pissed off.

[vukman]

Umm, what am I missing here?? Couple of magnitudes brighter I would be dancing up a storm and I've had 7 knee operations.. Needless to say I don't dance no more but I'd be thrilled to death..

All the best in the assembly........

[rives]

I'm curious what the led tester is like - could you put up a shot of it for us?

[tenthirty]

The led tester is just 2 AA batteries in the black holder in the center of the bottom pic.
So it's hitting them with about 3v or less.
whites are being driven at <350ma (I'll be driving them at 1750ma or less at about 3.1-.2v)
reds at >700ma (data sheet says max forward voltage 2.8, 2.2 typical) Hmm, seems the led tester could be a little much with fresh batteries.
With all the above, I'm assuming the data sheet is accurate.

[tenthirty]

On another note:

I was reading the data sheet and this popped into my mind.
Remember when working with electricity, It can kill you. The output of these drivers are 700ma and 1750ma respectively. Under the right circumstances, 50ma can kill you.
https://bigquestion.wordpress.com/200...-kill-someone/

Be safe.

[guvoo]

Originally Posted by tenthirty

On another note:

I was reading the data sheet and this popped into my mind.
Remember when working with electricity, It can kill you. The output of these drivers are 700ma and 1750ma respectively. Under the right circumstances, 50ma can kill you.
https://bigquestion.wordpress.com/200...-kill-someone/

Be safe.

Good point, but the Voltage of your drivers is to low to drive
50mA through a human body.

https://en.wikipedia.org/wiki/Extra-low_voltage

[guvoo]

Originally Posted by vukman

...mind if I ask what you used to attach the leds to the heat sink? Was it a thermal adhesive or the thermal tape...or silicone??

i go this way
https://www.conrad-uk.com/ce/en/produ...40-8943-09-WmK
or
https://www.rapidled.com/thermal-pads/

[vukman]

Originally Posted by guvoo

i go this way
https://www.conrad-uk.com/ce/en/produ...40-8943-09-WmK
or
https://www.rapidled.com/thermal-pads/

heya..thanks for the links..very appreciated.. I was doing some reading about the 3M products on the 3M main web site in the pdf's they have.
I was trying to find them locally (Greater Toronto Area) but to no avail so hence, when in doubt..ask at IC..

(add info),,,,,,,just found this....https://www.plccenter.com/Buy/3M%20TAPE%20DIVISION/8940
seems like a better deal. It's a box of them