LED Flat Panel (2x4-50W), 120-277V {hikashop_social} FEATURES: External driver mounted on top PMMA Light Guided Panel (LGP) does not turn yellow. High efficiency: 110LM/W Input Voltage: AC100V~277V Fixture Operating Voltage: 36VDC Color Rendering Index: Ra>80 Dimmable: 0~10V dimming Power Factor: >0.9 Current (mA): 1050mA 36V DC Frequency Range: 50Hz~60Hz Total harmonic distortion: ≤15 % Operating temperature: -68 F ~ 104 F APPLICATION: Soft and wide light emitting No infrared rays, no ultraviolet radiation, no thermal effect No flickering, no humming, no RF interference Earthquake hooks and Suspension hooks preinstalled