| 摘要 |
A new type LED lighting has simple circuit, low power consumption, low cost and may be used widely. The LED lighting comprises a case, a LED board, a constant current circuit and a bridge rectifier are disposed within the case. The LED board is provided with plurality of LED strings which are connected in parallel, each LED string is composed of plurality of LEDs which are connected in series. One terminal of the LED strings is connected to one terminal of the constant current circuit, the other terminal of the LED strings is connected to one output terminal of the bridge rectifier. The other terminal of the constant current circuit is connected to the other output terminal of the bridge rectifier, and the input terminal of the bridge rectifier is extended to the outside of the case. |
