Lbu 195 motion detector for flush mounting in interior areasthe housing of the lbu 195 inner motion detector is made of uv resistant plastic it is suitable for the wall installation and is used instead of a conventional light switch in an electrical box the lbu 195 motion detector also switches the light on and off the coverage range is 195 switching time and twilight switch can be seamlessly adjusted selectable continuous lightautooff available in triac version for 2 wire tech