how is the LED ceiling lamp lumens
Because of the luminous angle and so on, luminous flux is not the only standard to measure the energy saving of lamps and lanterns. We usually use light distribution and vertical illuminance to measure the substitution ratio between two lamps
Take a 18W LED lamp and a 36W fluorescent tube to compare the luminous flux of LED is about 1700LM, the fluorescent lamp luminous flux is 2300LM, but because of the LED lamp 180 degree light, fluorescent lamp is 360 degree light illumination LED lamp, out of the actual test will be much higher, with such push
All theory, laboratory data, it is the actual use effect, good chip LED lamps, the pure three colors illuminate the effect with 2 times its power (it is good lamp) almost ceiling effect. That is to say, the 5W of LED is almost the same as the 10W tube.
