Confirmation of OU devices and claims

[lancaIV]

Itsu,#443 :
                     66% of its output  = measured in lumen/Watt. ?
Sincerely
OCWL

[itsu]

LancaIV,

measured in mV output of a little solar cell.

Itsu

[lancaIV]

#440 satellite coil to LED : 140 mW (2,7 V,52 mA)

#443 LED to Photo cell : 1450 mV ,    mA  for getting output 66% ?

               
                                       

       

[itsu]

LancaIV,

Please state your questions clear.

I understand you ask for the amount of mA's through the led when it was characterized with DC in my black box
at the 1450mW (66%) photocell output data point.

The nearest Excel data point is at 1400mV / 134mW (see graph) which shows:

  V        mA    mW    PC V   PC mV
2,679    50    134    1,4    1400

So at 1450mV (140mW) it must have been slightly higher then 50mA, so about 52mA.

Itsu

[lancaIV]

https://translate.google.com/translate?hl=de&sl=de&tl=en&u=https%3A%2F%2Fde.m.wikipedia.org%2Fwiki%2FPhotometer
I am only wondering me about the photoelectric efficiency from LED power light conversion to Photo cell and the measured and indicating value  !