If power dissipation is a problem, or if the application needs more current, you can parallel two or more drivers ... withstand at least the voltage the LED load creates. Thus, linear drivers ...

The second video features the same resistor/switches/LEDs, this time in a parallel circuit. Turning on the first switch makes the first LED light up, and the second switch makes the second LED ...

The output voltage increases until the current through the LEDs ... parallel strings of series loads where the individual loads vary in voltage, if one load is open or if one load is shorted. The ...