The present disclosure relates to a luminaire including a light emitting unit, a heat dissipation unit, a heat dissipation housing and a heat dissipation fan. The control circuit is configured to receive a driving signal. A first surface of the heat dissipation unit is in contact with the control circuit. The heat dissipation housing has multiple heat sink fins, and the heat dissipation housing is in contact with a second surface of the heat dissipation unit. The heat dissipation fan is disposed at a position in the luminaire corresponding to the heat dissipation housing.本揭示內容關於一種燈具，包含發光單元、散熱單元、散熱殼體及散熱風扇。發光單元用以接收驅動訊號。散熱單元的第一面係與該發光單元相接觸。散熱殼體上設有多個散熱鰭片，散熱殼體係與散熱單元的第二面相接觸。散熱風扇設於燈具中對應於散熱殼體之位置。
