The Problem of LED brightness control Most newbies will be interested ... an open-loop control and there is no feedback from the circuit to the user other than varying brightness.

The Chromasens Bright Field Corona II LED line lighting system delivers an ultra-high light intensity that ensures consistent illumination across the inspected object.

But when you turn off the LED bulb, there's still some amount of current in the circuit. Since LEDs require ... re using pulse width modulation control or a light dimmer switch to control how ...