www.glow-bug.com has an excellent faq on LEDs and LED flashlights.
The Trek 7 has seven diodes and uses 3C cell batteries it should be bright enough.
I bought a LEDTronics white LED bulb w/PR-Base (gave it to Ralf I have a red one left and ordered a Trek 30 3AA for it) and tried the battery burntime. I used a 3D cell Maglite and Energizer batteries. It lasted 2 1/2 weeks before I got tired of the exercise and shut it off. When I placed fresh batteries it was definitely brighter but not much brighter. LED's strong suit: Long battery runtime.
The one thing I noticed about LED lights is that no matter how bright they are they're not very good for trail use. You can see what is directly in front of you but beyond that they don't compare to incandescents. LEDs make great reading lights. The light seems to be sharper.
I have two Tekna Splashlights that use a single 3V DL123A lithium battery. I'm going to have a guy make some white diode bulbs for me if he'll return my email. That is is the perfect combo for me. Lithiums and diodes
Ron's comments made me look at the PAL closer and they use a 9V battery. Sears sells 9V Lithium batteries for $6.99. I'll think I'll try that combo.
I'll second the motion for UK 2L. I had one and it disappeard almost as soon as I got it. While I had it it was a great light. I had a Pelican Stealthlite and loaned it to my brother. Haven't seen it since. A local Radio Shack guy also sells his own stuff and has the Stealthlites and Sabrelites for $19.99. Can't beat that on the internet. I'll have to pick up another one.
If the price of a UKE 2L and its lithium batteries seems a bit much I suggest a 2AA/4AA flashlight for general camp use. Among the ones I own or have tried are Pelican StealthLite, MityLite Magnum, VersaBrite, VersaBrite II, Mini-Maglite; Streamlight ProPolymer 2AA and UKE 4AA. The UKE 2L and 4AA use the same lamp assembly. Any of these flashlights would be good for general camp use. Except maybe the VersaBrites.
The AAA flashlights are great for occasional use but they seem to dim then die too fast for general camp use.
Also, C cell flashlights are small yet bright. I gave a Pelican PeliLite to my sister and she loves it. The 3C SabreLite is slightly brighter than a Stealthlite. Other 3C lights are Underwater Kinetics UK 300, Streamlight ProPolymer 3C. Also a Maglite with a Carly Lamp bulb is an excellent choice.
If money is no object and you want the brightest portable light possible, get a MaxaBeam or PlasmaBeam spotlight. Either should illuminate a bear nicely
------------------
"A knifeless man is a lifeless man"
-Nordic proverb
[This message has been edited by David Williams (edited 02 December 1999).]