Product Features of LED Ceiling light 16 Watt 1. Using advanced back-light technology and have high lighting effect 2. No flickering,no RF interference,no uv radiation 3. Proprietary design with aluminum for excellent thermal management 4. Easy to install and maintenance-free Illuminant parameters of LED Ceiling light 16 Watt Input voltage:AC85-265V, LED Type: SMD5630(Epistar/Taiwan chip); Color Temperature: 2800K-7500K (White/Warm white) LED life span: 50,000 hours, Light decay:3000Hrs<3% Power factor (PF) :=0.95; Beam angle: =120° Frequency (Hz) :47 to 63Hz, Color index (CRI) :=80Ra Humidity range:5 to 95% R.H. Work temperature:-20~+50?, Storage temperature:-40~+85? Warranty:2 years Browsing http://www.lead-lighting.com/led-ceiling-light/led- ceiling-light-16w-cl1.htm for more information about LED ceiling light 16W