Busch-balance® SI LED touch dimmer module with touch control element, 2-fold, Wireless. For manual and automated switching and dimming of light sources. For saving and recalling scenes and groups via the right rocker. Remote controllable via Bluetooth through a smartphone/tablet app. Optimized for dimming retrofit LED light sources (LEDi). Comprising Flex LED touch dimmer module, 64851 U. Comprising control element flex, 2-fold, Wireless, 62721-WL. Comprising rocker, 2-fold left with dimmer symbol 6234-21-915. Comprising rocker, 2-fold right with scene symbol 6233-22-915. Comprising Busch-balance® SI cover frame, 1-fold 1721-915. To be installed only in conjunction with commercially available flush-mounted device boxes according to DIN 49073 Part 1. Design line: Busch-balance® SI. Product series: Busch-flexTronics® Wireless, Busch-free@home® Wireless, Busch-free@home®.