Signify Lighting, Ballast, Centium/Smartmate, Commercial, eFluo Fix, Min Start Temp -18C, Amps 0.71-0.30A, Average Life 43800HRS, Volts 120-277V, Watts 39W, Non Dimmable, Number of Lamps 2, Ballasts Factor 1PCT, Input Frequency 50/60HZ, Programmed Start Yes, Certifications are ULISOFCCCSA, RoHS