| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a dimming type LED downlight capable of being used, as it is, for a socket for a dimming type filament bulb equipped in a henhouse. <P>SOLUTION: After a dimming type filament bulb is removed from the socket 101, and in its place a dimming type LED downlight is mounted. In the LED downlight, a stationary or a variable type dimmer applicable load 12 for securing a minimum current value necessary for an already-installed dimmer 100 is inserted into a power source controlling circuit inside the LED downlight 1 so that dimming may be possible by the installed dimmer of the filament bulb as it is. By the working of the dimmer applicable load 12, the installed dimmer 100 used in dimming of the filament bulb can be used for dimming of the dimmer type LED downlight 1 as it is. <P>COPYRIGHT: (C)2010,JPO&INPIT |
