RadioRA 2 Hybrid Keypads function as a dimmer and keypad combined into a single device. They are useful where lights need to be dimmed and controlled by a keypad in the same location. Hybrid Keypads are great for retro-fit applications because they eliminate the need to install two separate devices. RadioRA 2 Hybrid Keypads have an available neutral wire terminal that allows them to be installed in either two-wire orneutral wire installations. Connecting the neutral wire to a Hybrid Keypad allows a lower minimum load to be used. Also, normal keypad operation will be available even if the attached load is not installed or if the lamp is burned out. If a neutral wire is available in the wallbox it should be connected to the silver teminal on the Hybrid Keypad. If a neutral wire is not available and not desired, then the silver terminal should be tightened without any wires connected to it. Hybrid Keypads can be installed in either single location or multi-location (with Remote Dimmer) installations.RadioRA 2 Hybrid Keypads can be controlled as part of a lighting control system and incorporate advanced features such as fade on/fade off and rapid full on. RadioRA 2 Hybrid Keypads feature large, easy-to-use buttons, plus a unique backlit engraving option that makes them readable any time of the day or night. The Hybrid Keypad buttons are rounded, allowing engraving to be displayed at an upward angle, increasing readability. RadioRA 2 Hybrid Keypads include a Front Accessible Service Switch (FASSTM) for safe lamp replacement.