The Brief:
They state: 3.03μmol/J
This calculates to: 80% efficiency
The datasheet calculates: 67.35% efficiency
What's the skinny: the difference is from the losses on the phosphor
The Claim:
LM301H 6500K flux data:
LM301H 6500K testing parameters:
Digitized LM301H 6500K SPD...