... , themal light flashing phenomenon;2.Bright light: bright, the light plane output, luminous completely more wide angle.3. ... durable:10 years use period, not by the electromagnetic interference, not pollute the enviroment.5.Wide application: hotel, conference rom ... orders.2. Good quality: use superior material, the complete fixture can meets the international standard (UL, CUL, PSE, CE, and ROHS).3 ...