The ENER-J 6500K Backlit Panel Ceiling Lights feature a simple structure, a low failure rate, easy to maintain and repair. Eco-friendly with no harmful elements, there is no LGP inside, so do not worry about the yellowish problem of conventional edge-lit LED panels. They have wide PCB of light sources (SMD) with superheat radiation, low decay of light and long lifespan as well as PMMA optic lenses with high light transmission rate, and larger beam angle. They have high brightness and efficiency with even light distribution with no bright spots and no dark areas. They have an instant start, reaching full brightness within 0.5 seconds, and offer flicker-free light for releasing eye fatigue and eliminating working pressure. Pack of 2. Active power factor correction design, high performance, low THD CE (LVD & EMC), CB, SAA & RoHS certified. Rated Wattage: 40W, Lumens: 3800lm, SMD QTY: 64. SMD Type: SMD2835, 9.0V 110mA. Light Efficiency: Up to 100 lumens per watt. Colour Temp: 6500K. Input voltage: 220-240V. CRI: 80. Beam Angle: > 120-degree. Power factor: PF > 0.9. Starting time: < 0.5s. Warranty: 2 years.