What is 'Light Intensity'? and what does it mean as a percentage?

Question

im studying light intensity, I have figures as percentages - what do these mean, what does the light intensity actually mean.

ty

SD

Answer 1

The question is a little vague.

Answer 2

If you have a percentage figure then it will be the light intensity relative to some standard. As such, the unit used to measure it is irrelevent, though that would be foot/candles or lux.

Answer 3

it means that these low enegy bulbs are c**p.  they say 11w = 60 w etc, but they lie man.  it efficay, its like led bulb like rubbish man.  Tungsten coiled coil is best.