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AusChristmasLighting 101 Manual
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[QUOTE="i13, post: 121663, member: 21708"] I can't comment much on the WS-DMX-36CH-HV because I don't know anyone who has used it. What I do know is that 1A per channel is plenty for traditional LED strings. That would correspond to approximately 1000 LEDs per channel at 31V. Note that (for example) a two channel string of 2000 lights with two negative wires and one common positive is still okay. The 2000 LEDs are divided across the two channels so it is 1000 LEDs per channel. I am not sure what you mean about constant current and constant voltage DMX controllers. I have only heard about constant current and constant voltage in the context of power supplies. The only reason that I know that Ray Wu's 27 channel controller supports up to 35V is because ACL member AAH (owner of [URL='http://www.hansonelectronics.com.au']www.hansonelectronics.com.au[/URL]) sold some second hand ones to me at a meetup. He has the technical knowledge to know this. I use them at 31V and they work perfectly. If the string of LED lights only has two wires between the blinker unit and the first LED, this will be wired very differently compared to the string that we have been discussing. The blinker unit would flash these LED strings by reversing the polarity. When the LEDs are set to steady on, the polarity is quickly reversed back and forth. You can see that they are still flashing if you wave them around quickly. [B]The WS-DMX-36CH-HV is not compatible with these LED strings[/B]. It can only switch the negative on and off; it can't reverse the polarity. If you connect one of these LED strings to the WS-DMX-36CH-HV, only every second LED will turn on. The only reverse polarity DMX controllers that I know of which are compatible with these LED strings are from Hanson Electronics: [LIST] [*][URL]http://www.hansonelectronics.com.au/product/dmx2-18/[/URL] [*][URL]http://www.hansonelectronics.com.au/product/dmx2-24/[/URL] [/LIST] [/QUOTE]
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