Author Topic: DMX Floods - Bypass Internal Controller  (Read 743 times)

Offline jcraigcx

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DMX Floods - Bypass Internal Controller
« on: September 04, 2017, 08:03:01 AM »
Hey guys.  I have one of Ray's 30ch CV decoders that I use for some dumb RGB floods.  I ordered what I thought were 30w UV + Purple dumb floods from Ray, but they are actually DMX floods.  Description is accurate, I just missed it.  Links for both items:


https://www.aliexpress.com/store/product/30channel-10groups-easy-dmx512-decoder-DC9-24V-input-constant-voltage-PWM-output/701799_2020499236.html?spm=2114.12010615.0.0.334aa018ctc006



https://www.aliexpress.com/item/30W-UV-purple-395-405nm-color-DMX-flood-light-DC24V-input/32696209376.html?spm=a2g0s.13010208.99999999.264.e1GSyO


I took one apart and see there is a DMX512 controller inside.  My question is, can I take that thing out and drive these directly from the V+RGB outputs of the 30ch decoder?


Thanks.


Offline AAH

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Re: DMX Floods - Bypass Internal Controller
« Reply #1 on: September 04, 2017, 04:17:19 PM »
The floods will have a constant current driver inside it somewhere. Without having a constant current driver between the standard dmx board and the leds in the flood you will likely destroy the led pretty near immediately as it will have no current limiting.

Offline jcraigcx

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Re: DMX Floods - Bypass Internal Controller
« Reply #2 on: September 04, 2017, 05:59:19 PM »
Thanks for the reply.  I put power to them today to see what would happen and they light up and go through a test pattern (DMX not connected).  Looks like Ray has wired them as if they were RGB, but since all the lights are the same color, they just go through a pattern where sections of the array are off or dimmed in a cycle.  I suppose I could use it them that way, but its not exactly what I was trying to achieve.


Appreciate the help - and saving me an LED flood as I was about to try bypassing the internal controller!

 

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