A light emitting diode (LED) lamp includes a light emitting module; a power module for driving the light emitting module; and a housing having an optical part for receiving the light emitting module, an electrical part for receiving the power module. The light emitting module includes a plurality of circuit boards sequentially arranged parallel to each other, a plurality of first LED chips which has lenses covered thereon being mounted on the circuit boards, and a plurality of second LED chips which has no lens covered thereon being mounted also on the circuit boards. The first and the second LED chips are arranged in columns and rows. The second LED chips are located symmetrically in respect to the first LED chips.