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### Topic: Power Supply VS 50 Watt Chinese LED. (Read 683 times)previous topic - next topic

#### cjdelphi

##### Mar 13, 2013, 06:20 am

I Dial in 27v, but limit the current to 0.02amps (CC/CV)

0.54watts of energy being supplied to the diodes, now the voltage it reads AFTER connecting the LED varies on the wavelength of the LED and band gap or something or other, but just what is precicly going
on here... with the voltage...

how come we don't see 27v at 0.02amps from every row?

#1
##### Mar 13, 2013, 07:52 am
This is correct.  The higher the frequency (shorter the wavelength) of the light emitted by an LED, the higher the voltage required.

That was AWESOME amount of light being emitted at 1A.  WOW!

I'm a programmer dammit, not an engineer!
Like this post?  Please give me some karma for it.  Thanks!

#### Chagrin

#2
##### Mar 13, 2013, 08:52 am
The higher the frequency (shorter the wavelength) of the light emitted by an LED, the higher the voltage required.

Y'know I never noticed that correlation before you mentioned it.

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