A series of new apatite phosphors Ca5.95-xSrxLa4(SiO4)(2)(PO4)(4)O-2:0.05Eu(2+) (x=0-5.95) were prepared with the solid-state method. The variations of the occupation rate and cell parameters were investigated in detail, demonstrating that the phosphors are pure phases and that the different occupation rates of La3+, Ca2+, and Sr2+ ions are due to the different electrostatic bond strengths. The reflectance and photoluminescence excitation spectra prove that the phosphors can be efficiently excited with near-ultraviolet (n-UV) light. The broad redshift (50nm) in the photoluminescence spectra is attributed to the increase in the crystal field splitting when the Ca2+ ion is replaced by the larger Sr2+ ion. At 150 degrees C, the obtained phosphors maintain an emission intensity of similar to 67%-77% of that at room temperature (25 degrees C), which indicates relatively the high performance of apatite phosphors in the temperature-dependence experiment. Because of the substitution of the small Ca2+ ion by the large Sr2+ ion, the emission color changes from green to yellow. Finally, a series of self-made light emitting diodes lamps were fabricated by coating the Ca5.95-xSrxLa4(SiO4)(2)(PO4)(4)O-2:0.05Eu(2+) phosphors with commercial blue and red phosphors on an n-UV chip ((ex)=370nm). The self-made white-emitting lamps display a continuous changing correlated color temperature (4053-9353K) or commission international de L'eclairgae (from [0.29, 0.28] to [0.38, 0.37]), implying that the series apatite phosphors have great potential to meet the different requirements of applications.