The light source brightness of this filament bulb is 9W equivalent to the brightness of 100W incandescent lamp, with ultra-high luminous efficiency and perfect CRI !
The light source brightness of this filament bulb is 2W equal to that of 25W incandescent lamp, with ultra-high luminous efficiency and perfect CRI !
The light source brightness of this filament bulb is 4W equivalent to the brightness of 60W incandescent lamp, with ultra-high luminous efficiency and perfect CRI !