i have deben tracer 170 variable and find it as tough as the standard light force 170 I used to have. The only thing I might change would be go up to the 210 for more light if the chase goes to the end of the beam. I was going to buy the striker but found the dimmer switch awkward to use. Deben has a lovely radio volume type knob on back of handle as sweeter to use. I notice on lamp shy stuff the variable turned down really low , just enough to see a glimmer of eye gets you right up on top of them. Using the standard light before didn't get me near as close.
Thanks Jiggy..a perfect reply for