How actually the stepdown works?

[Reader9]

I suggest Convoy T3 or T5–they are not the brightest or smallest but they have stable output and various LED options.

@bilakos10

Output

Here’s my output measurements along with the current draw per each output level using an 14500 cell.

As we can see, the flashlight pushes 448 OTF lumen of High CRI light.
Overall the mode spacing of the light is great.

Power Regulation

Here’s my power regulation graph when running on a 14500 cell.

What we can see in the graph:

• Turbo mode is regulated down to 3.4V
• High, Medium and Low are fully regulated for the whole span of the battery’s voltage.

And a power regulation graph for an AA / NiMH cell.

What we can see in the graph:

• Turbo is regulated down to 0.9V
• High, Medium and Low are fully regulated.

Overall the driver is showing great regulation signs!
On both AA and 14500, the driver will gradually increase the current draw while the voltage drops to be able to provide a constant amount of power to the emitter.