The 4006 DynaOhm™ by LUXdrive is a semiconductor based resistor that provides constant current to LEDs and strings of LEDs. It also reduces current to the LED(s) when the device temperature rises. It is the perfect replacement for a fixed resistor in circuits where the input voltage varies. The simple two wire DynaOhm™ eliminates complicated math from low power LED circuits. The DynaOhm™ can drop up to 24V (25mA model) allowing for use with 24VDC automotive systems and one LED.