I bought the nightmaster 800from Taclight with a red led and have used for a couple of weeks.
The lamp itself is very good, most definately suitable for foxing. Coupled with a meopta 6x 42 I can confirm suficient light levels to clearly identify passed 200m, eyes visable passed 400m.
The beam is adjustable from a very tight square (a bit odd at first), not measured but i would guess 7m square at 150m to more spread.
I have used the light for a couple of hours burn between charges with only 5-10 mins of charging required, this is with the extension tube.
I have not managed to work out the different power modes to date, but to be fair I have not really tried hard.
The only downside is the mount, it is a pain to line up having no elevation/windage adjustment, and moving with only small knocks. If anyone has a solution or a spare cluson mount please let me know.
On the whole I would highly reccomend the unit, if you are intolerant of door slamming/ chatting/ too much light/ "interesting calling techniques" etc etc then this will allow you to get out alone easily, or make a very small easy to use main lamp.
If anyone can arrange a suitable location I would be happy to bring the unit for a people to see in action.
Tabs