SL21 is an ultra compact streetlighting controller, dedicated to management of one lamp. It can be installed either in the luminary or in small size junction boxes.
It can drive electronic ballasts: SL21-E-M-T version can drive at the same time (and independently in remote management) one DALI ballast and one 1/10V ballasts.
Version SL21-EDA-ECS is able to drive a DALI ballast and be connected at the same time to, for example, a presence sensor.
More information : General documentation SL21