is 2.03 MB, has a resolution of 2500x2500 pixels and was uploaded on August 21, 2019 @ 5:15 am by user: martter. It is filed under the tags: lumen, lighting, led lamp, led filament, lamp. Click the blue button at the top to freely download: Annular Luminous Efficiency Incandescent Light Bulb LED Lamp Light-emitting Diode png.