Posted: 8/21/2011 7:46:27 AM EDT
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3 AAA batts.....
24 LEDs forward.... 3 LEDs down.... flip up hook.... Magnetic... and a bit of brake light tape makes them nite time friendly... 
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| I've got about 6-8 of these lights, they have a magnet and/or stowable hook for mounting and 2 lighting options. I just switched the batteries in one, the originals lasted for over a year for occasional use. They work great and are inexpensive. Inside a vehicle or trunk they stay where you put them if you use the magnet. I'm completely satisfied. |
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Any run time numbers? I like the structure, but am leery about run time with so many leds. Posted Via AR15.Com Mobile I'll run a experiment.....stand by....  Thank you. :-) Posted Via AR15.Com Mobile OK.....at 3:00pm, Aug 23rd....I cut it on with the factory batts.....the 24 LED setting..... |
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Harbor Freight number 67227
On sale for $3 labor day weekend sale. With 3 AAA batts they are running at 4.5V which is typical for LEDs. At $3 it's worth trying to run one at 12V. But it might not have much circuitry in there. You may have to have a buck circuit to drive them at the 4.5V they are looking for. |
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4:50pm.....same 12 are still on....very dim....best guess is 20%. not bad for factory batteries.... so about 24 hrs of useable light? I would say that.....and that's with the batts it shipped with..... I plan on running just the 3 LEDs on a set of factory batts.... And then both again on new Duracell Procells.....it is what I have a bunch of. |
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For 12 volt use: http://www.dimensionengineering.com/AnyVoltMicro.htm I use a couple of these board in various applications. Downconverting 12VDC to 5VDC. http://www.ebay.com/itm/150400544171?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1423.l2649 |
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I opened one up.
No electronics inside as expected. Just a 3 way switch and two resistors. The 3 LEDs on the end run through one 1/8W resistor. The 24 LEDs run in four parallel strings of six LEDs, all in parallell running through the same 1/2W resistor. (I didn't record the resistor values before I buttoned it up). With no regulation, if you feed this thing 12V it will likely fry the LEDs. |
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I opened one up. No electronics inside as expected. Just a 3 way switch and two resistors. The 3 LEDs on the end run through one 1/8W resistor. The 24 LEDs run in four parallel strings of six LEDs, all in parallell running through the same 1/2W resistor. (I didn't record the resistor values before I buttoned it up). With no regulation, if you feed this thing 12V it will likely fry the LEDs. Just put 4 or so in series. |
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I opened one up. No electronics inside as expected. Just a 3 way switch and two resistors. The 3 LEDs on the end run through one 1/8W resistor. The 24 LEDs run in four parallel strings of six LEDs, all in parallell running through the same 1/2W resistor. (I didn't record the resistor values before I buttoned it up). With no regulation, if you feed this thing 12V it will likely fry the LEDs. Just put 4 or so in series. That should work. |
