56W ceiling lighting grid panel led: 1.No UV, no IR ... pannel lumen attenuation: Operating time(hours)Lumen decrease(%)5,0002.410,0005.220,00011.350,00024.5Applications:Office ... your requests.4.Shipping port: Shenzhen, Mainland China.5.Payment terms: T/T 40% as deposit, balance ... driver and cable, easy maintenance and strong connection.5.Ceiling and Pendant Installation Optional; Easy installation;6. ...