Hog1k to ignite VL2500

Hi,

Always using Macs in the show, but for one day had to use VL2500 spots and washes. We could not make the lamp-on command out of the Hog1000.
In the control channel there is command for that but did not work, we used an avo desk to ignite.
Can someone tell me what is the trick? how can I make it work?

thanks a lot,
Hans
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