Is an LED 20 watt equivalent to 40 tubes?
There are several kinds of white color temperature, warm white, is white, cold white,,, generally are on the market is more white, warm white, yellow,,, nothing is harm to human body, there will be no ultraviolet rays,
The equivalent of 40 to 60 w. Theory led luminous efficiency is more than 10 times of incandescent lamp, energy-saving lamp is 2 to 3 times, but according to the feeling of the human eye not probable, because the led color temperature difference is very big, also is white is a lot of kinds, unlike CFLS in general only warm white (3000 k) is the white (4500 k) two kinds, calculate by is white multiples this is true, but when the temperature above 6000 k will feel a lot of dark, smooth color slants, a bit like a jack-o '-lantern, so buy the led lamp in the guest is white, the bedroom to warm white (3500 k) advisable, can't see how much watts.
The normal fluorescent tube is 40-60lm/W, and the fluorescent tube of 40W is between 1600 and 2400LM LED light effect 90-120lm/W, 20W LED tube light effect in 1800-2400LM So if the quality LED tube is completely replaceable, please refer to the lamp tube of shenzhen fangco lighting
Rishi's 20wLED light bulb is the equivalent of 20O light bulb, and the rest of the other CARDS I use are very bright and bright. 5WLED bulbs are much brighter than 25W bulbs.
