6 different time periods (5 day plus 2 day or 7 day programming) displayed on an easy-view blue illuminated screen. Auto mode: The light output will be controlled by the programmed times Photocell mode: The light output will only come on when the light level drops, if it is within a programmed times. Random mode: On a random basis, it can change the ON/OFF times programmed by up to 30 minutes earlier, or later than programmed Manual mode: The light output is controlled by the Adv button, not the programmed times. Automatic summer/winter time changeover. Fits a standard flush or surface mount BS wall box min 25mm No neutral required. Can be connected 1 way or 2 way. Internal battery powers the switches controls, therefore the lamps will not flicker when a minimum load is connected. Note: FLA01 strip light adaptor or the ZV900 load controller may be required in certain installations (sold separately) Switch rating: 0 - 50W LED Extendable up to 200W with ZV900 (sold separately), 40 - 400W Filament, 11 - 150W Low Energy (Min bulb size 11W), 18 - 76W Fluorescent IP20 rated - for indoor use only. UKCA & CE certified Dimensions: 87mm tall x 87mm wide x 24mm deep (projection) 14mm rear projection. 60.3mm fixing centres (standard UK 1 gang)