Another interesting little light from Pound World. This time a mini COB light that runs from two CR2032 lithium button cells.
The six pin chip that controls the LED is marked HJ6x1 and seems to be a common bike/head/flash light controller
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15 thoughts on “Pound world’s mini cob led keychain light.”
  1. Avataaar/Circle Created with python_avatars Janice Kobain says:

    Oh, mine doesn't have the circuitboard. How sad it can't strobe on me!

  2. Avataaar/Circle Created with python_avatars Clive Evrall says:

    These were available at W.H. Smiths in Coventry untìl fairly recently. I bought one and am quite happy with it but from memory it cost around £3.50.
    Someone else here pointed out that if the switch is held down for a few seconds it will switch to slow morse SOS which could save a life in some circumstances which is an additional feature not pointed out on the case. Neat.

  3. Avataaar/Circle Created with python_avatars Roy Tellason says:

    I hear you about the post office. They raise the rates every January, and yet continually claim to be losing money…

  4. Avataaar/Circle Created with python_avatars Michael L says:

    It is cheaper to send a post card from Singapore to Germany, than within Germany…

  5. Avataaar/Circle Created with python_avatars Manaf Hassan says:

    Metal can attach to light right?

  6. Avataaar/Circle Created with python_avatars Manaf Hassan says:

    I have red, yellow,green and blue light

  7. Avataaar/Circle Created with python_avatars Planet of the Idiots says:

    Y NOT turn of the light and show the brightness ?

  8. Avataaar/Circle Created with python_avatars Russell Peake says:

    Going back through your videos after finding you recently – just wanted to comment it would cost me at a minimum 22aud to send you something – probably closer 50aud by the time it has any weight behind it.

  9. Avataaar/Circle Created with python_avatars InDepth says:

    Love from Pakistan. Sir you are making great videos, very informative.

  10. Avataaar/Circle Created with python_avatars Larry B. Lindsay says:

    Canadians have the same problem buying from the US. A $3 part costs $25 to send it. I buy Canadian or from China.

  11. Avataaar/Circle Created with python_avatars Mark Ellis says:

    But the key question is, how bright is it and how long did it run for before it went dim. Perhaps you could turn the lights off and illuminate the room or garden with it?

  12. Avataaar/Circle Created with python_avatars Brian De Wolfe says:

    If you think US Post charges a lot, you should see what Canada Post charges! US Post looks like a bargain from Canada

  13. Avataaar/Circle Created with python_avatars Mahla Propyzm says:

    Worth noting that these will work with a single 2032 (though not as bright) using a 5p coin as spacer. Chip is same as FM2819: 16KHz PWM for low setting, 8Hz strobe and long hold SOS mode.

  14. Avataaar/Circle Created with python_avatars TopDog8762 says:

    Yes the cost of postage in US is ridiculous.

  15. Avataaar/Circle Created with python_avatars coondogtheman1234 says:

    Found a bunch of these in a gas station in the next town over from me. Next time I go in that store I'm going to grab one of these. How long does this light run on a set of 2032's? If it's not that long then I might give it the USB treatment. Should run fine on 5 volts.

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