Abstract: A variable intensity street lamp led retrofit kit includes an LED light unit having multiple LED lights and a screw-type power base. A control unit having a shape and size that is complementary to a ballast box includes an AC to DC power source, a timer module, and a dimmer unit. The power source provides power for the operation of the LED light unit, the dimmer adjusts the output power to control an intensity of the LED light unit, and the timer adjusts a duration of the light operation. A motion sensor detects movement and interrupts the dimmer operation.