| 摘要 |
A light bulb (12) encloses a number of colored LEDs (15,16,17,18) arranged in groups a on a printed card (20). In the lamp base (13) a switching equipment (14) in the form of a microprocessor is fitted. When first switched on all LEDs are energized. Subsequently, by repeatedly switching off/on individual or selected combinations of groups of LEDs can be switched on to obtain different colored lighting. If a receiver circuit (19) is fitted switching can be by remote control. |
