The invention discloses an LED
bulb lamp with
high color rendering index and high illumination efficiency, and overcomes the shortage of the prior art. The LED
bulb lamp structurally comprises a
lamp shell, an LED light emitting module, a radiator, a driving power supply, a lamp body and a lamp cap, and is characterized in that: the LED light emitting module is formed by packaging a plurality of white LEDs prepared from
blue light excited YAG fluorescent
powder, a small number of white LEDs prepared by adding
nitride red fluorescent
powder into YAG fluorescent
powder and a small number of red LEDs on an
aluminum substrate or
metal conductive
epoxy PCB board; the peak
wavelength of the
blue light of the white LEDs prepared from the
blue light excited YAG fluorescent powder is 455+ / -5nm and the half
spectral width is 25+ / -5nm; the peak emission
wavelength of the YAG fluorescent powder is 570+ / -10nm and the half
spectral width is 150+ / -10nm; the peak
wavelength of the blue light of the white LEDs prepared by adding the
nitride red fluorescent powder into the YAG fluorescent powder is 455+ / -5nm and the half
spectral width is 25+ / -5nm; the peak emission wavelength of the YAG fluorescent powder is 570+ / -10nm and the half spectral width is 150+ / -10nm; the peak emission wavelength of the
nitride red fluorescent powder is 635+ / -10nm and the half spectral width is 50+ / -5nm; and the peak wavelength of the red LED is 640+ / -10nm and the half spectral width is 22+ / -5nm. By using different numbers of LEDs, both the
color rendering index and the illumination efficiency of the LED
bulb lamp are ideal, and the LED bulb lamp can be widely applied to various lighting occasions.