本发明系关于一种光源模块，其包括：一布线载板；以及一发光二极管数组，其系电性连接至布线载板，并于驱动时发出第一发光峰组、第二发光峰组及第三发光峰组，其中第一发光峰组具有300nm≦λmax<450nm之发光峰，第二发光峰组具有450nm≦λmax<550nm之发光峰，第三发光峰组具有550nm≦λmax<600nm之发光峰。该些发光峰系依据水面下太阳光光谱进行拼配，当将第二发光峰组中最大的峰值强度作为1.0时，第一发光峰组中各发光峰的峰值强度Ia为0

Disclosed is a light source module, which includes a wiring board and an LED array electrically connected to the wiring board. The LED array can be driven to emit a first group of emission peaks in 300 nm ≤ [lambda]max < 450 nm, a second group of emission peaks in 450 nm ≤ [lambda]max < 550 nm, and a third group of emission peaks in 550 nm ≤ [lambda]max < 600 nm for matching the spectrum of sunlight underwater. When the maximum peak intensity of the emission peaks in the second group is taken as 1.0, the peak intensity Ia of each emission peak in the first group is in a range of 0 < Ia ≤ 0.9, and the peak intensity Ib of each emission peak in the third group is in a range of 0 < Ib ≤ 0.9. Accordingly, the light source module of the present invention is suitable for aquatic species and can enhance growth rate of the aquatic species.