A light emitting device is provided. The light emitting device includes a circuit board and a light emitting diode unit. The light emitting diode unit is disposed on the circuit board. The light emitting diode unit emits a light having a specific wavelength band. The wavelength band is suitable for growth of firefly.一種發光裝置,包括一電路板及一發光二極體元件。發光二極體元件設置於電路板上,用以發出一光線,光線具有一特定波段。其中,特定波段用以適合螢火蟲生長。1‧‧‧發光二極體元件2‧‧‧支架2a,2b‧‧‧導電引腳2c‧‧‧樹脂3‧‧‧發光二極體晶片4‧‧‧銲線5‧‧‧透明膠6‧‧‧電路板6a,6b‧‧‧銲墊7‧‧‧發光裝置
