Recently, there has been a growing emphasis on the importance of green industries for reducing energy consumption. As part of the reduction in energy consumption, LED lamps have been widely distributed and used, but conventional fluorescent lamps made of glass tubes have not been actively replaced with LED fluorescent lamps because the replacement of conventional fluorescent lamps is too difficult, for instance, in order to replace the conventional fluorescent lamps with LED fluorescent lamps, a conventional fluorescent lamp stabilizer provided within the light of the fluorescent lamp has to be removed and an LED converter must be installed again. The LED fluorescent lamp of the present invention is driven by continually using an alternating current power source outputted from a fluorescent lamp stabilizer, and thus the installation of the LED fluorescent lamp can be completed by replacing only a fluorescent lamp made of glass tubes with the fluorescent lamp of the present invention while the conventional light of the fluorescent lamp including the fluorescent lamp stabilizer is used. Furthermore, the LED florescent lamp of the present invention provides the advantage of allowing power consumption to be constant even though an inputted alternating current voltage is considerably increased up to AC 250-260V.