going big

joachimk · Mar 11, 2014

After I had built a 30 000 l video light first
I am now playing with these LED
This is 400 watt led
The led works on a realy big battery , now only i have to make a waterproof housing

http://www.cobled-module.com/photo/...high_power_led_module_80_cri_with_en62471.jpg

Image tags removed see Rule #3 Do not Hot Link images. Please host on an image site, Imageshack or similar and repost – Thanks Norm

hydropower · Mar 11, 2014

Nice! How are you planning to drive it? What voltage/current will it take?

joachimk · Mar 11, 2014

it is a 68V at 6A

for now i have it running from a 48V battery pack .

hydropower · Mar 11, 2014

That's a tough one to drive at full power!

lucca brassi · Mar 12, 2014

canister like 7L stage

something like http://www.ebay.de/itm/331103894619?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1423.l2649

----------------------------------------------
cheap boost

http://www.ebay.de/itm/Digital-DC-D...21167498118?pt=Netzgeräte&hash=item1c36254b86

Packhorse · Mar 12, 2014

I am almost finished building my scooter 12S li ion pack. Its 50.4 volt 20.8 amp hour.
Should run a LED like that for a couple of hours.

joachimk · Mar 13, 2014

i'm building now a lifepo4 pack to see if it will work for the led.
for now everything is working so have to see how it is in the caves

hydropower · Mar 13, 2014

You do plan to use some sort of regulator I hope? Would be a shame to burn the LED because of too high current!

joachimk · Mar 13, 2014

yes i did, it is fixed at around 6A

just need a way to put the steps in 25% 50 % 100%

than i will be ok

jspeybro · Mar 18, 2014

if you're using a driver like the H6CC driver from taskled, you could use FETs to switch between different resistors connected to the potentiometer contacts.
I once made such a setup giving me 2 modes on a H6CC and magnetic switching via read contacts. I never finished the light though due to a problem with the host I planned to use.
I guess the schematic can be modified to use 3 modes.

going big

joachimk

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Packhorse

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