Determining Lumen Output with Reflector

[SmoothInnovator]

I am building a light fixture using an LED rated at 100 lumens. I am applying a narrow reflector that indicates it will multiply the lumen by 52. Therefore I would assume the output after applying my reflector is now 5,200 lumens. I realize that I am not increasing the source lumen, but rather focusing it.

Would I be correct in stating that the total lumen output of my fixture is 5,200 lumens?

I am new at this and trying to learn, thank you in advance for your feedback.

 

[Yoda4561]

No, a more accurate number would be around 60-90 lumens depending on losses from the reflector. Lumens cannot be increased from the bare emitter value, intensity can, and that is measured in candlepower.

 

[Marduke]

Lumens never go up, only down. Depending on the reflector, you will be getting 60-80 lumens OTF. You are confusing Lux and lumens. Lumens is a measure of total output, lux is a measure of intensity (or throw).