Electronic trailing edge dimmer suitable for control of AU-LPF640/650/660/670 dimmable compact fluorescent downlights. AU-DET311 controls 1-15pcs-AU-LPF640/660 or 1-10pcs-AU-LPF650/670. Trailing edge phase control. Also suitable for use with tungsten lamps, resistive loads and electronic transformers - see load table below. Integrated over-temperature protection fuse. Smooth dimming operation from 25-100% light output. Fits a 25mm deep mounting box. One or two way switching. Complies with the latest Electrical Safety standard for dimmer switches EN 60669-2-1:2000. EMC compliance - EN 55015. 1 Year guarantee.