to be honest with you… i’m still baffled by this too… the ceiling test shows nothing different in brightness than without it.
however… like i pointed it out in pictures or light meter test it doesn’t lie… it simply is brighter.
i changed the subject to more throw instead brightness as it get a lot of people confused.
i guess some people perceived brightness in terms of calculated scientific formula. others like me…to see those beam shots, it just plain simple brighter.
as far as lumens? does it increase? or does it decrease? i don’t really care nor need to understand how it works… i want a cheap light and able to throw far … maybe as far as lights that cost 10X more than my cheap light, and i found it the device does just that.
too bad some people have higher expectation that the device need to increase in lumens that can measured scientifically to be accepted as it is brighter than before.
as my picture shows… using my idea,my cheap Trustfire Wf-502B can throw over 300’, to me… that’s amazing,as normally that light will never hit over 100’… but even with those pictures… some people still unconvince.
if you meant aspherical lens as in zoomie flashlight… i’ll be glad to tell you it works wonder too with the device.
as it cancel out the typical square hot spot that associated with zoomie light, it even throw farther too
my next experiment is going to use even cheaper flashlight such as coast G10 , i got this light for free for filing up a survey with them
clearly this light will hardly can illuminate an object 50’ away, yet during my preliminary testing using the same device… it able to throw that far.
stay tuned