[Mini] high-beam LED 1400 millicandela at 1m only drawing 2.5A

Tom Parker tom at carrott.org
Sat May 20 22:28:02 MDT 2017


On 16/05/17 21:21, Dr John C Bullas wrote:
> Just used my light meter to measure the output of one of my LCD h4
> replacement modules
>
> get a luminous flux result of 17.6 lumens.... I'm confused
>
> https://www.compuphase.com/electronics/candela_lumen.htm
>
> it is very bright and COOL and drawing only only 2.5a
>
> Anyone care to tell me the light output or current load  if it were a
> quartz halogen bulb?

I'm not sure what your question is, but could it be that your lux meter 
is confused by the LED's spectrum? If the output is biased towards some 
wavelengths at the expense of others the meter might under or over read.


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