Guys I need help here.
Could a rheostat or a dimmer controlled light like this Uniquefire 1605 control single mode FET/DD setup?
What dimmer does to driver? Probably lowering(regulating) current draw amperage of a driver? Or other like lowering battery voltage?
First off, you don’t want a straight rheostat (variable resistor) since all it would do is lower the voltage to the LED, and would quickly drop it below the Vf.
Off the top of my head a PWM driver controlled by a dial would probably be the simplest route to variable brightness. Another solution would be an Anduril(sp) driver like Lumintop uses in the GT lights. Switch depression and hold ramps up to full brightness, then back down to dark. Just release the switch at the level one likes. I don’t use the ramp ability much. Just basically ramp to a level I like, then just turn on and off as needed.
I talked to Uniquefire and they told that all classic 1 x 18650 drivers should work(even the one with modes) with their dimmer lights but when I asked her what does their dimmer switch do (lowers amperage or voltage?) she did not knew how to answer that…
This light has some brass or copper tube pressed into aluminum flashlight body probably specially made for that dimmer.
If so than probably FET drivers could be used with this dimmer light?
You could use a potentiometer to limit current and voltage (like variable resistors) for brightness control. I think that’s how they do it for the majority of drivers with that adjustment. That can be good or bad because you’d need a current limit set or else you could over drive the led easily and damage or toast it if your driver doesn’t have a current limit.