A more down to earth LED keychain light with integrated USB plug for charging, a generous 80mAh cell and bright output, but with limited functions.
This LED flashlight uses two standard 5mm LEDs which are pushed quite hard at 40mA each. The circuitry is fairly sensible and the only thing really missing is a lower intensity mode for high run time, and the ability to detect when it's been on for a few seconds and to turn off on the next button press instead of cycling through the three modes.
Despite being cheap, it actually comes in very good packaging and seems to be quite well thought out.
The light also has a high output UV LED on the side which is capable of making UV identifiers in banknotes glow.
Here's a link to the listing I bought this one from:-
http://www.ebay.com/itm/282037456053
If you enjoy these videos you can help support the channel with a dollar for coffee, cookies and random gadgets for disassembly at:-
http://www.bigclive.com/coffee.htm

12 thoughts on “Inside a cooyuen usb rechargeable keychain light.”
  1. Avataaar/Circle Created with python_avatars suka vinegar says:

    Brings out the giant calculator but decides not to use it anyway.

  2. Avataaar/Circle Created with python_avatars ssgeek45 says:

    I thought you can buy leds with a current limit chip inside the lens.why don't they use these to save on space or is it just to tight great teardown. Brilliant

  3. Avataaar/Circle Created with python_avatars EightZero Four says:

    I love this channel, i learn about all the important things like brute force and ignorance, vice of knowledge and gay daleks xP big shout outs from Australia Clive, always love your videos.

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

    You're my disgrace! You buy everything I want to buy but I haven't budget for all!!! -_-

  5. Avataaar/Circle Created with python_avatars shuriKen says:

    dentistry? seems a tad askew in comparison to the plethora of tools they use.

  6. Avataaar/Circle Created with python_avatars Mystic Hawk says:

    great video thanks for sharing !!!

  7. Avataaar/Circle Created with python_avatars Nightcore Demon says:

    you mist one feature you can put the usb cap on the front so it make's the light orange and make it a warning light

  8. Avataaar/Circle Created with python_avatars Great Value Bleach says:

    I see someone reusing old Toshiba thumb drive molds

  9. Avataaar/Circle Created with python_avatars kirkb4989 says:

    The one that Big Clive FORCED me to buy just showed up. Interestingly they seem to have changed the micro code. Click the button and the white LEDs turn on, click again and the white turns off and the UV turns on, click again and it goes off. Press and HOLD the button for a second or so and THEN it blinks. MUCH BETTER!!

    Oh and you CAN take the cap off the USB connector end and place it on the LED end and get a diffuse light. Interesting feature.

  10. Avataaar/Circle Created with python_avatars Benjamin Esposti says:

    You sure that "ultraviolet" LED is actually UV? Some are just a deep purple, not quite what I'd call "true" UV. (UVA/B/C)

  11. Avataaar/Circle Created with python_avatars BillyNoMates1974 says:

    thinking of modding mine and placing a 32gb usb storage drive in it (provided there is a little bit of room), charge and store at the same time

  12. Avataaar/Circle Created with python_avatars BillyNoMates1974 says:

    received mine today. actually i am impressed with it for £2.60.
    I haven't compared it to the Nitecore tube yet but I would expect the Nitecore to be better.

    Just one note BigCliveDotCom, they seem to have changed the firmware and now pressing the button once does main light.
    pressing again turns on the UV light.

    Holding down the button then makes the main light flash. similar behaviour to a Nitecore light

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