Task Force 3 watt led flashlight

POWER! And a big heat sink. My road bike has a 5 LED white light that is brighter than most headlights, and it is 3 years old. There are 2 types I have heard of. 1. UV LED exciting special fluorescent white material. These are supposed to be the brightest.

1. 3 colors R.G.B. at the right power to appear white but harder to make. The whites in my bike light use 3.3 V through a resistor from 4 AA's so are about 100 mA total. It is a Cat Eye Opti Cube HL-EL300, and makes a nice flash lite when not on the bike. 4 x 2,800mA hour batteries gives

Moral: If you think LED torches are bright, have a look at a halide torch.

I've never heard of UV LEDs. They're not impossible, but they'd require a rather wide band gap.

My understanding was that white LEDs were blue LEDs with a yellow-fluorescing material. (blue+yellow=white -- to the eye)

"William Sommerwerck" wrote in news:JeydnSX7Xe-TE-PVnZ2dnUVZ_v snipped-for-privacy@comcast.com:

Fascinating. Thank you.

I'm sure they're popular among geologists, among others...

Dunno. Ask the alien visitors. All such advanced technology was reverse engineered from a crashed UFO at Roswell NM as detailed in:

Yep, we did some UV LED light strips for some arcade route. Cluster a load of them together and they look pretty cool.

Meat ! I'm surprised someone as experienced as you has to ask that ! Everyone knows that they do it by packing the magic smoke in UNDER PRESSURE ... !! :-)

Arfa

Yeh silly me heh. There are actually a couple things left that I still don't know :)

Hundreds I don't, mate !! I went in my friend's shop today and he said "Hey, waddya know ?" I told him "Everything about nothing, or nothing about everything, take your pick"

Arfa

Lol !