Power supply (V): 3 x AA batteries (included) Wound nose adjustment parts Focus length: around 40cm Brightness switching Can be d continuously for approximately 14 hours Magnification (folding): 2.0 Lens dimensions (mm): 30 x 35 Main body dimensions (mm): 145 Width (mm):145 寺庙长度(mm):135 焦点长度(cm):大约。 40 镜头宽度(mm):35