An LED bulb comprising: - a base formed with an external electrode pad (171, 172) receiving electricity from an external power supply; - an LED package set comprising a substrate having a pair of electrode pads formed at one end thereof, a first LED package comprising at least one first LED chip, a second LED package comprising at least one second LED chip, and a resistor, - a holder formed with a connection portion receiving one end of the LED package set and electrically connected to the pair of electrode pads of the substrate and disposed to support the LED package set in an upright position; and - a light transmissive cover enclosing the LED package set and coupled at one end thereof to the base; wherein the first LED package, the second LED package, and the resistor are disposed on the substrate, the first LED package and the second LED package are connected in parallel and emit light having different color temperatures, and the resistor is connected in series to the first LED package and connected in parallel to the second LED package; and wherein the connection portion of the holder is provided in the form of a groove or hole into which one end of the substrate is inserted, and comprises a pair of connection terminals electrically connected to the pair of electrode pads of the substrate, wherein the one end of the LED package set inserted into the connection portion corresponds to one end of the substrate at which the pair of electrode pads is formed, and wherein the pair of electrode pads are provided at the same surface side of the substrate to connect with the pair of connection terminals of the connection portion. - a base formed with an external electrode pad (171, 172) receiving electricity from an external power supply; - an LED package set comprising a substrate having a pair of electrode pads formed at one end thereof, a first LED package comprising at least one first LED chip, a second LED package comprising at least one second LED chip, and a resistor, - a holder formed with a connection portion receiving one end of the LED package set and electrically connected to the pair of electrode pads of the substrate and disposed to support the LED package set in an upright position; and - a light transmissive cover enclosing the LED package set and coupled at one end thereof to the base; wherein the first LED package, the second LED package, and the resistor are disposed on the substrate, the first LED package and the second LED package are connected in parallel and emit light having different color temperatures, and the resistor is connected in series to the first LED package and connected in parallel to the second LED package; and wherein the connection portion of the holder is provided in the form of a groove or hole into which one end of the substrate is inserted, and comprises a pair of connection terminals electrically connected to the pair of electrode pads of the substrate, wherein the one end of the LED package set inserted into the connection portion corresponds to one end of the substrate at which the pair of electrode pads is formed, and wherein the pair of electrode pads are provided at the same surface side of the substrate to connect with the pair of connection terminals of the connection portion.