I know the brits sorta invented English as a language, but like all inventions someone has improved upon it so we dont have to say (al-lu-mini-um) for Aluminum (a-luma-num) even thats the way it is spelled

just messing around I love brits – my other side of the family lives there

Your suggestions of “glowrod” and “lightstick” are quite appropiate. I myself prefer “photon cannon” ;)

BTW, the people over at CandlePower Forums has been doing amazing (and beautiful) flashlight hacks for a long time now.

you can buy 5W LED flashlights for 1/10th the price of that thing on ebay from china sellers already. I got one that is bright enough to make you temporary blind in bright sunlight.

it’s a great exercise, but i question the need. a couple rechargeable CR123′s and a charger is less than US$20/AU$30 from dealextreme. i’ve been running one of these 1000mAh CR123′s in a 120 lumen light for several weeks of casual use and am very satisfied with the runtime; they’re cheap enough that i can have some charging and some in use.

and, regarding the rabble: do you guys ever realize that you’re lowering yourself when you froth at the mouth to one stupid person, american or not? do you realize how… stupid that makes you look? it’s like getting a troll response without actually trolling.

For the efficiency measurements, check if your multimeter is marked “true RMS”. If not its likely just reading some form of average. and due to high currents, the shunt resistance of the DMM can have an effect. Use the highest current range if possible.

btw, for best efficiency, tear apart that cree module and replace it all with a single boost/sepic LED driver. First google result was LM3410 which looks cool.

“Edit: YES the fire images are faked! The light generates nearly zero heat “

The burning paper was suspect. Quick searches for other examples were quite difficult since the word “fire” is in the title of many of their products. There is actually a flashlight that can set fires. After looking at all the comments, I found it on the web and it looks like it uses halogen bulbs.

Thanks for the feedback! The burning paper was faked (meant to be a joke that obviously backfired), I thought the last picture of the burning house would’ve put it into perspective ;p

Lots of dumb people in this world. Its ignorant for people outside of the USA to associate the stupid loud minority as representative of the rest of the citizens of the USA. Its also ignorant to expect American citizens to know the intricacies of all other cultures in the world… but yet not know all the different details of the USA. The old constantly used meme “Not everyone lives is USA asshole” is usually properly directed… but there are lots of dumb people in this world.