| 摘要 |
To provide a light source device and an illumination apparatus capable of reducing electric power loss. The parent module 10 has chip LEDs 1, a constant current power supply IC 12 for supplying a constant current to the chip LEDs 1, a resistor 15 as adjusting means for adjusting an output current of the constant current power supply IC 12, input/output connectors CN1-CN4, chip jumpers 2-9. By attaching the chip jumper 2 and not attaching the chip jumper 3, the electrical path of the connector CN1 is connected to the input terminal of the constant current power supply IC 12. By arranging the other chip jumpers 4-9 as described above, 24 V connected externally to the connector CN1 is supplied to an external device through the connector CN2, and the output current of the constant current power supply IC 12 is supplied to an external device through the connectors CN3 and CN4.
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