Just before I went out to Quiplie a few weeks ago, I bought a LED Lenser P7 with csope mounting bracket and remote switch. I thought it would be a good idea on the 22 for shooting those rabbits that hopped just outside of the car headlights in the evening, besides I needed a new torch (the old MagLite is still going strong but is so bulky).
It was a good move - it worked very well. The light is supposed to be good out to 210m when focussed as a spot light (bit sceptical about this) but I only needed to use it out to about 10m.
At first I tried it without the remote switch - refer photo below, but swapped over to the remote switch after the second night. Once again, this was a good move - I taped the switch to the forestock and it was easy to find and operate without much thought. I could also "pulsë" the light on and off to try and confuse/dazzle the rabbit. Before I fitted the remote switch, I found myself pushing my thumb into the lens of my scope by mistake when trying to turn the torch on - no light and smudged lens.