| 摘要 |
PROBLEM TO BE SOLVED: To provide a three-color LED lighting control lamp that can use an existing lighting fixture and implement illumination of any color by individually controlling lighting of LEDs of three colors.SOLUTION: A three-color LED lighting control lamp 1 has a power supply circuit 3, a lighting controller 4 and a three-color LED lamp 5. The lighting controller 4 supplies DC output from the power supply circuit 3 to individually turn on or turn off a red LED 10, a green LED 11 and a blue LED 12, and outputs a red lighting control signal, a green lighting control signal and a blue lighting control signal which are subjected to PWM control to individually control lighting of the red LED 10, the green LED 11 and the blue LED 12. The three-color LED lamp 5 contains the red LED 10, the green LED 11 and the blue LED 12 in a straight tube 20 mounted between confronting sockets 19, 19. A power supply terminal 24, a red lighting control signal input terminal 25, a green lighting control signal input terminal 26 and a blue lighting control signal input terminal 27 are provided at both the ends of the straight tube 20. |
