Termite wrote:Greg wrote: It's hard on your batteries....
^This^
Power Consumption: 16.8V@10A
I hope that battery pack can handle that much current safely, Esp. that much heat, without going into thermal run-away........which can be interesting to watch.
Looks like the pack is built up from the 'standard' lithium lego cell, the 18650. I've seen high discharge 18650's that are rated for 20 or 30 amps (yes people buy them specifically for that capability), but the ones I have for my flashlights wouldn't deliver more than 5 or so amps. Oh, and the thermal runaway, in a flashlight tube that's like a pipe bomb.
308Mike wrote:You need to realize that any such high-intensity flashlight contained in such a small package would (by necessity), be used only in short bursts.
Oh certainly. But with LED lights that have proper thermal design, you could get quite a bit longer bursts and much more runtime overall, with no worries about flash-bulbing your incredibly expensive 100W bulb.
Which leads me to their lasers, which are probably of the same design and not designed for a long-term output (more than several seconds at a time - which is how the consumer laser/flashlight market works - other than that including the LEO market which needs bright flashlights for moderate lengths of time).
Chinese flashlights can be very hit or miss, but Fenix is one company that's made an effort to make consistent quality lights (and be able to charge a price premium accordingly).
http://www.fenix-store.com/fenix-ld60-led-flashlight/
Is a sample of a 'beer can' light. That format is pretty popular for a light with multiple LED's and multiple batteries that doesn't need a big reflector 'head' for throw. For a more generic Chinese budget light version, look up 'Skyray King' or 'SRK' there's a whole little industry that's grown up around versions of that basic format.
http://www.fenix-store.com/fenix-tk75-x ... 00-lumens/
Has a thick handle to hold the batteries, and a big reflector head for throw. There are also various generic Chinese budget lights like this, it's not really my thing but I've heard good things about one called the 'BTU Shocker' (yes really, that's the name).
These offer max output in the same type of ballpark as the 100w torch - perception of brightness is logarithmic so the perceived brightness difference will be much less than it appears on paper - with enormously better runtimes, multiple brightness levels available for different types of task and longer runtimes, etc. (And some versions of things like the SRK will actually be brighter than the incandescent.) And at most they should be drawing ~3amps from the batteries.
Maybe we're just jaded, but your villainy is not particularly impressive. -Ennesby
If you know what you're doing, you're not learning anything. -Unknown
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