Assuming you are talking about a stand-alone
LED lighting
fixture, as opposed to an
LED lamp of some sorts (screw in,
etc...)
Typically and hopefully, the
LED fixture will require 2 thing,
Power and Control Signal, which is usually a
DMX signal.
The
fixture(s) will want to be powered off a clean and dedicated
power source (not a dimmed
circuit, even parked ON and not in
non-dim mode). You can usually
power up a lot of
LED fixtures on a 15 or 20 amp
circuit.
Then you need to run a
DMX control cable from one of the the
console's
DMX ports (typically port 2 -
DMX universe 2, if the first port is already controlling the dimmers) to the first
fixture and then "
daisy chain" the control cable from
fixture to
fixture.
The rest of the Long Answer.
You then set the "
address" of the first
LED fixture and off-set for every remaining
LED and thence forth.
A typical
RGB (Red, Green, Blue)
LED fixture might use 4
DMX addresses per
fixture, one for each color and a 4th for overall
intensity. Different fixtures may require more (an add'l
address for other functions -
strobe, as example) or the fixtures may add a White or Amber
LED set,
etc.....
So
fixture 1 set at
DMX address 1,
fixture 2 at
DMX address 5,
fixture 3 at
address 9,
etc... Typically done with Dip Switches. Hopefully the
fixture manual has a table to tell you what switches to set in an On/Off state for specific addresses.
One control method is to allow one
console channel for every
address required. If you have 96 dimmers and 96 channels used and want to control the
LED's in a range above the dimmers, then set
channel 101
thru 104 for
fixture 1, 105
thru 108 at
fixture 2,
etc... Then go to patch and patch
address (
dimmer in
Express speak) 513 (assuming you are using the
console 2nd port) to ch 101, 514 - ch 102,
etc......
When you bring up channels 101
thru 104 to full, all the R, G & B
LED's are at full, with
intensity (if the
LED's have such a
address) at full. You can then raise and lower the R, G & B channels to mix colors.