Hi,
I'm trying to interpret a bulb's data sheet. It's a 50W GU10 halogen:
http://www.osram.com/osram_com/prod...m-halopar/osram-halopar-16-gu10gz10/index.jsp
Elsewhere, I've read that typically this type outputs >800 lumens, while in this specs it claims it's only 300 lumens? I am not sure if the angle of 90° for which this is specified plays any part in this discrepancy, as I imagine that due to the shape of this bulb this would be about the angle where the entirety of the light flow ends up.
Is this some weird industry norm that is not much helpful for end users, or I am just not reading it right?! Any attempt at explanation will be much appreciated!
I'm trying to interpret a bulb's data sheet. It's a 50W GU10 halogen:
http://www.osram.com/osram_com/prod...m-halopar/osram-halopar-16-gu10gz10/index.jsp
Elsewhere, I've read that typically this type outputs >800 lumens, while in this specs it claims it's only 300 lumens? I am not sure if the angle of 90° for which this is specified plays any part in this discrepancy, as I imagine that due to the shape of this bulb this would be about the angle where the entirety of the light flow ends up.
Is this some weird industry norm that is not much helpful for end users, or I am just not reading it right?! Any attempt at explanation will be much appreciated!