how do you measure.....

PeLu

Flashlight Enthusiast
Joined
Jul 26, 2001
Messages
1,712
Location
Linz, Austria
<BLOCKQUOTE><font size="1" face="Verdana, Arial">quote:</font><HR>Originally posted by recercare:
How do you measure Wattage, Lumen and Candlepower?<HR></BLOCKQUOTE>

If you feed your light with DC, wattage is easy to measure: measure voltage and current at the same time and multiply it.

For measuring (peak) Candela you just use a Luxmeter one meter away and you get the reading in Candela.

For measuring the luminous flux you will need an Ulbricht sphere (that means: forget it).
 

recercare

Enlightened
Joined
Aug 29, 2001
Messages
330
Location
Norway
How do you measure Wattage, Lumen and Candlepower? Do you need instruments or can you find out using formulas based on other infoes, such as Volts, Amps etc?
 
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