Cimei Lighthouse (also called Nan-hu Lighthouse) is located on the cliff top at the south tip of Cimei Isle in Pen ghu archipelagos. It was built in 1939 and equipped with the 100-candlepower acetylene lamp. The tower was renovated in 1964, and re-equipped with the fifth class electric lamp, which flashed twice consecutively every ten seconds with 2,600 candlepower light.

The dorm and storeroom were built in 1989. The lighthouse are in the custody there afterwards.

Height of lighthouse: 8.3 meters

Height of light (Above H.W.) : 40.8 meters

Nominal range: 11.3 nautical miles