I own a couple of Purelight PL182 tri-beam LED lasers. I like them. They shoot pretty beams of light out. They claim they can do tunnels, but no combination of DMX signals I have sent to it - and I've spent hours fiddling - have rewarded me thusly. In fact, the DMX control seems non-deterministic. And the manuals are (a) Chinglish and (b) wrong in places. Sigh... Does anyone here have experience of these devices, and can send me the magic runes to make my lasers sing?