Notice regarding Fluorescent Bulb

Started from 2011, Linco Inc will disclose two types of technical information regarding the wattage of the fluorescent bulbs. The first technical information is the wattage consumption, and the second information is the comparable brightness of the incandescent bulbs. Meanwhile, the calculation of the incandescent brightness is to use the lumen amount divided by 14. Customers can download all technical data from the Linco website.

Note: CFLs radiate a different light spectrum from that of incandescent lamps. Improved phospformulations have improved the subjective color of the light emitted by CFLs such that some sources rate the best 'soft white' CFLs as subjectively similar in color to standard incandescent lamps. Because the eye's sensitivity changes with the wavelength, the output of lamps is commonly measured in lumens, a measure of the power of light perceived by the human eye. The luminous efficacy of lamps refers to the number of lumens produced for each watt of electrical power used. A theoretically 100% efficient electric light source producing light only at the wavelength the human eye is most sensitive to would produce 680 lumens per watt. The typical luminous efficacy of CFL lamps is 60 to 72 lumens per watt, and that of normal domestic incandescent lamps is 13 to 18 lm/W. Compared to the theoretical 100% efficient lamp, these figures are equivalent to lighting efficiency ranges of 9 to 11% for CFLs (60/680 and 72/680) and 1.9 to 2.6% for incandescent (13/680 and 18/680).