Versatile fluorescent luminaire. Type of controlling gear: Electronic Ballast. T8 or T5 lamps x4 compatible (not included in package). Application: educational facilities, administrative facilities. Installation: surface-mounted. Input voltage (AC, 50Hz), V: 176...264 AC frequency, Hz: 50 Flicker, %: 5 Climatic modification and category of placement: УХЛ4 Height/depth, mm: 50 Length, mm: 595 Protection class: I Ingress protection (IP): IP20 Impact resistance: IK02 Width, mm: 295 Power factor: 0,95 https://www.varton.ru/products/lyuminestsentnye-svetilniki/lyum-dlya-obrazovatelnykh-i-administrativnykh-uchrezhdeniy/a370-2kh14-lyum-lamp-vstraivaemye-nakladnye/lyuminestsentnyy-svetilnik-varton-a370-2kh14-ofisnyy-vstraivaemyy-nakladnoy-595kh295kh50-mm-ip20-s-r_1/