Light My Bricks light kits run on a low-voltage 5V, 2.4A USB input. For continuous display, connect the kit to a Light My Bricks USB Wall Adapter, which powers up to 400 LEDs in total across its two USB ports, or to a Light My Bricks USB Power Bank. For mobile displays, the Flux Pack uses 6x AAA batteries and has a 4-stage dimmer for medium-sized kits, and the compact Power Brick 2.0 uses 2x CR2032 batteries to power up to six LEDs when combined with docks. Light My Bricks recommends only its own power sources. Other adapters, including higher-voltage ones, are used at the customer's own risk and are not covered by warranty.