Hi nowell!! Welcome to the forum:) (im new as well)
Thank you for your update!
The results are very disappointing.
Actually, this light is not much brighter then a single t6? :s
Another thing, is there something to do with that? Changing the driver will help to gain more lumens?
And remember, if nowell used 26650s, then the voltage drop is lower than 18650s, so that 2A really translates to 2.3-2.4A if we were to use 18650s? That’s pretty ok, same as the first gen SR3800 etc.
Factor in reflective losses + refractive losses + bezel obstruction I would expect output to be around 1000 Lumens OTF. Possibly less OTF if the deep bezel blocks more side spill than I suspect. Possibly less OTF if its a spring floating design with no thermal path, although at this low of a drive current I would not expect it to warm that much… definitely not enough heat to initiate thermal dimming on a cold start.
Where approximately 500 lumens per LED
Total 1500 Lumens
It is very far from 4000 Lumens announced
FR
Rectification :
Batteries 7.2V Courant 2A
Avec convertisseur : 3.6V et 4A
Soit (en absolu) 1.3A par LED
D’ou environ 500 lumens par LED (1500 Lumens en tout)
on est très loin de 4000 Lumens annoncé