Recent content by KENN MOSSMAN

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  1. K

    LED strip lighting advice for accent basement lighting

    1) WHY RGB???? what kind of activity will go on there?! 2) yep 3) ok if you want - get a package that has one remote/controller controlling several PSUs 4) depends on activity 6) Independent often means ...here 3 controllers Frankly I would Not use strips - use ceiling lights
  2. K

    LED 6812 5v wiring help please

    Did the OP die in a fire?
  3. K

    LED 6812 5v wiring help please

    Good point AND OFTEN IGNORED by websites selling LED products!!! and they are self-proclaimed experts!
  4. K

    dimming LED strip lights

    Either one or more silicon power diodes or Schottky power diodes OR high wattage resistors. That is very brief....details upon request
  5. K

    30,40,50w led with a forward voltage of 9-14v

    Silver coated copper wire (!???? - harder to solder). . 12vdc only They are simply arranged in groups of 3 per set with many sets in parallel
  6. K

    DIY low power light from LED using 120VAC

    NOT always true. . If you need to drive different LEDs at different currents then CV can be more practical
  7. K

    DIY low power light from LED using 120VAC

    There seems to be a phobia about heat. Yes heat is bad for LEDS but the derating curves start at 50 degrees C.
  8. K

    DIY low power light from LED using 120VAC

    I am too lazy to read all the replies..... but are you really using 120VAC directly???? It seems not. You can use PWM, CV, or CC to control the LEDS. CC is often best and can be done easily (DIY) but does require some expertise to done successfully.
  9. K

    Need your help finding specific brand of led lights.

    Dead OP?
  10. K

    Using a COB LED panel: experiences

    I STRONGLY disagree.There are very good factories in China but the problem is finding them.The ones you see on the popular B2C and B2B websites however cater to the low-end of the market. I spent Ten years in China and visited (in-depth) MANY LED factories and did QA.
  11. K

    heatsink size, watts, current capacity?

    WHY do you think you need reverse protection???? 1) waste of power 2) unnecessary; LEDS do have a reverse break-down threshold 3) extra cost & trouble 4) you can use a MOSFET or Schottky (spelling) diode
  12. K

    10W LED chip on 7W LED driver?

    No.It only means the LEDS will be at"70%" 'brightness'
  13. K

    10W LED chip on 7W LED driver?

    The colour shift can occur at the bottom end of the DC, ie less than 10% so I doubt there would be in this case, assuming fully driven.
  14. K

    Decent White LED Strips?

    I dare say I DO KNOW ...I have lived in China for TEN years and been to MANY electronics factories and they do use rejects and as you stated.
  15. K

    heatsink size, watts, current capacity?

    Total watts is a major part of sizing a heat-sink but you also have the thermal coefficients from the junction to case, and case to heat-sink. As well as ambient temperature,and the thermal coefficient of the heat-sink. If you are using PWM then I don't know what you mean by the supply voltage...
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