An EL wire controller (or inverter driver) boosts low DC battery voltage (like 3V or 12V) up to roughly 60–120V AC at an audible high frequency to excite the phosphor inside the wire, providing steady glow, flash, or strobe modes.

Battery-powered portable packs: Usually run on 2x AA or AAA batteries with simple click-buttons for steady on, slow flash, and fast blink.
12V DC drivers: Hardwired units designed for automotive, costume, or larger setups running off a 12V supply.
Sound-activated controllers: Built-in microphones pulse or dance the EL wire to the beat of ambient music.
Multi-channel sequencers: Allow microcontrollers or multi-output units to sequence patterns across several individual wire strands.