... 3, Power factor:80 4, Certificates: CE, ROHS, UL led flat panel 21WPart number: BDL-P21-001Wattage: 21WDimensions: 600mm×600mmWorking Voltage: AC85 ... & fluorescents. No mercury, no ballast required and environment-friendly product.Wide voltage and constant current design, solid state, high shock & vibration ... , kitchen, display, backlight, home indoor lighting and so on. led flat panel 21W