Neptun's 4" LED Downlight Retrofit kits feature rugged design and versatility to make it an excellent choice for new construction or retrofit applications. The LED-DL4 series retrofit kit features excellent optics for increased visibility. The 120V Analog/Triac dimming ensures increased energy savings. Off ered in a variety of wattages and color temperatures, it can replace existing Incandescent systems up to 60 Watts.