Most part of times this could be true
Just for record.... Long times ago I bought PRO400RGY projector.
I measured its output power...
445mW (CNI) of red at 650nm and 115mW (CNI) of green at 532nm.
Total power: declared=400mW; measured 560mW!!!
I think this is only just a "lucky factor"....
When (long long long times ago...) I bought CS800RGY, found inside:
- 2 barrel red diode 2 x 120mW at 660nm (crap diodes...)
- n°1 green diode 105mW at 532nm
Total power: 120 + 120 +105 = only 345mW...... holy cow!!!
I already guess you obvious question.....Where the missing
445mW has gone?
Who knows?