RadioRA® 2 Hybrid Keypads function as a dimmer and keypad combined into a single device. Hybrid Keypads are great for retro-fit applications since 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 or neutral wire installations. Connecting the neutral wire to a Hybrid Keypad allows a lower minimum load to be used.