Stupid question about voltages

[ptolemy]

I figured if I don't ask, I'd feel even more stupid.

Most of the p60 drop-in's are either rated 3-6v or 3.84v or higher.

Assumption being that first one is designed for 1 cell and others for 2.

I have seen some drop-ins that are rated for 1 and 2 sells that put out same lumens. Assuming that the rating is fair, shouldn't the one rated for 2 cells be putting out a lot lumens?

Or, it only has to do with something enteirly different?

(A good example is lighthound uv drop in that's only rated for 1 cell 6v max or some other drop in that's also 3w and rated for 8.4v)


Thanx;>

 

[labrat]

I figured if I don't ask, I'd feel even more stupid.

Most of the p60 drop-in's are either rated 3-6v or 3.84v or higher.

Assumption being that first one is designed for 1 cell and others for 2.

3-6 Volts mean 3 Volts minimum and 6 Volts max, that is is either one rechargeable LiIon (3.6 Volts nominal) or 2 primary Lithiums (2 x 3 Volts).
Outside of these the drop-in cannot maintain full regulation , or it will burn out!

I have seen some drop-ins that are rated for 1 and 2 sells that put out same lumens. Assuming that the rating is fair, shouldn't the one rated for 2 cells be putting out a lot lumens?

Or, it only has to do with something enteirly different?

Higher voltage and same Lumens means longer runtime compared to the lower voltage drop-in.
Keep asking, you won't get answers unless you do!
But do also some reading up here.
Most topics have been discussed before.

 

[ptolemy]

thanx i fuigured as much, but i wanted to make sure

i thought that offering same 3w drop-in in diff voltage wasn't anything special except just giving a choice