The Firefly L318ALD21K is a compact, one-button key chain remote designed as a direct replacement and upgrade for legacy Allstar/Allister 318 MHz systems that use a 9-switch binary code. Operating at 318 MHz, it triggers compatible garage door openers and gate operators with a simple press, and integrates a convenient LED flashlight for everyday carry. Its single-channel design is ideal for residential or light commercial applications where a dependable, constant-code transmitter is required.
This transmitter uses a 9-position binary DIP switch bank for programming—just match the switch pattern in the remote to the existing receiver or working transmitter to pair, with no additional “learn” steps on fixed-code systems. It is intended only for 318 MHz Allstar/Allister binary receivers and is not compatible with rolling code, trinary, or other frequency formats. Typical use cases include replacing lost remotes, adding extra fobs to an existing opener or gate system, and consolidating to a compact key fob with a built-in flashlight. For best results and safety, confirm your opener’s frequency and coding method before purchase and test operation from a safe distance after programming.