It is equivalent to a common lamp of 40 to 60W.
In theory, the luminous efficiency of led is more than 10 times that of incandescent lamps, and it is 2-3 times that of energy-saving lamps. However, it is not necessarily accurate according to the human eye, because the color temperature of LED is very different, and the same is true for white. Unlike energy-saving lamps, there are only two kinds of warm white (3000k) white (4500k). It is correct to count the multiple according to the white, but when the color temperature is above 6000k, it will feel a lot darker, the light color is blue, a bit like a wildfire. Like, so buy led lights in the passenger lights to be white, the bedroom should be warm white (about 3500k) is appropriate, can not just look at the power is how many watts.
Ordinary fluorescent tube light effect 40-60LM/W, 40W fluorescent tube light efficiency is about 1600-2400LM.
LED lighting effect 90-120LM/W, 20W LED tube light efficiency in 1800-2400LM.
So if the good quality LED tube is completely replaceable.
The actual use is much brighter than a 40 watt fluorescent lamp.
More than 60W! ! 30 W is equivalent to 90W.
Equivalent to 20O watts.
Well, it’s brighter than 40 watts.
--Shenzhen Toplight lighting Co. Ltd.(led tube light/LED linear light
/led high bay light/led tri-proof light/Toplight/Toplight Lighting)