This EC and UN-R10 approved electronic load relay has 2 outputs for up to 60 watts each. The module automatically switches between low beam and Daytime Running Lights (DRL) via a light sensor. The sensitivity can be adjusted across 60 brightness levels and then saved permanently. The switch time from Daytime Running Lights to low beam is set to less than 0.5 seconds to ensure safety when entering tunnels. The switch time from low beam to Daytime Running Lights is set to about 3 seconds to prevent triggering from stray light, such as from other vehicles or streetlights. Waterproof unit measures only 38 x 16 x 11mm (1 1/2" x 5/8" x 7/16"), small enough to fit into most lights or steel handlebars.