Tell us about yourself!
:D A little antique shop one block away from our house, which is in a small country town. The owners travel to Europe regularly to stock up on items. What amazes me the most is that it showed no wear. Was it surplus? Did the owner not end up going to battle? We'll never know.Glad you enjoyed it.Cheers
Turn Incandescent Torch Bul...View Instructable »
Electronics Crash Course
LEDs and Lighting Class
G'day M.B., Found these details, hope it's what you need. It covers 1 - 3w (Mine are 1w) and the lumen output on mine is closer to 110lm, not the 180-200lm on the data. I'm guessing it's talking about the 3w in that case. Yes I do put it on a heatsink, and sometimes on a length of aluminium tube, all with heat transferring grease between . Operating voltage is 3.4 - 3.8v. At the bottom end (down to 3.2v) they don't heat up much, but at the top end they can get quite hot, and that 0.6v difference equals more than double the brightness. I should shut up and post this :) Thanks for your time.Cheers
G'day, Thanks for an interesting project. I've made a number of 300mAh 1W LED torches for the family, running on 3 NiMH AA's with a resistor. My question is, Would your project run one of these LED's? and, if so, on one or two AA's? I dislike using my current set up as I need (for best usability) a two way switch, one way through the resistor for when the batteries are freshly charged (which seems like a waste of power), then the other way by-passing the resistor once it's got too dull. Your project sounds much better :) I can solder and follow instructions, but my electronics knowhow's fairly limited. I've attached a photo of one of the LEDs I'm using.Thank you very much for your time.Cheers