High power floodlight for railways Input voltage (AC, 50Hz), V: 154...308 AC frequency, Hz: 50 Input voltage (DC), V: 142...431 Type of luminous intensity curve: Special Power factor: 0,95 Rated ambient temperature according to IEC62722-2-1, °C: -60...40 https://www.varton.ru/products/zheleznodorozhnoe-osveshchenie/airqub-rzhd-dlya-vou/airqub-rzhd-440vt/svetodiodnyy-svetilnik-varton-airqub-rzhd-vou-440-vt-4500-k-upravlyaemyy-nema-razem/