Rahz
Well-Known Member
I already posted this in a topic but though it could use it's own thread. The first picture is the PAR map of a well known manufacturer's lamp. It's a "900" model and the claim is that it replaces a 1000w HPS. It's actual power draw is 418 watts. The second picture is the PAR map for the T22. It's actual power draw is 200 watts.
The average of all the measurements for the red/blue light is 222. The average of all the measurements for the T22 is 256.
Conclusion: The amount of light delivered per watt from LED can vary so much that a lamps "true wattage" is all but meaningless.
The average of all the measurements for the red/blue light is 222. The average of all the measurements for the T22 is 256.
Conclusion: The amount of light delivered per watt from LED can vary so much that a lamps "true wattage" is all but meaningless.