Description:**** Rechargeable light-sensing bicycle front light;**** LED: 1x5050 high-power LED;**** Battery: Rechargeable 18650 lithium battery;**** Brightness: 400Lm;**** Use time: 3 hours in strong light file;**** Dimensions: length 108x height 32x width 41mm;**** Product Features:**** Use high-brightness 10W LED, high brightness and long life;**** Use high-quality 18650 lithium battery, charging times up to 1000 times;**** Using a special algorithm constant current drive circuit, taking into account both brightness and heat dissipation performance;**** Meet the IP65 protection level, and can adapt to all kinds of complex outdoor environments;**** Adopt high-quality light control chip and algorithm, can automatically switch the light source according to the brightness of the environment;**** Multiple modes and brightness are optional.**** Lighting mode description:**** Button function:Tap the button: strong light -> medium light -> low light -> OFF, and so on;**** Double-click the button: flashing (10Hz)->slow flashing (2Hz)->SOS, and so on**** Light sensing mode description: The role of light sensing mode:When the lamp detects that the ambient light is insufficient, it will automatically turn on the light source (the brightness of the light source is the previousThe brightness used in the light sensing mode);When the lamp detects that the ambient light is sufficient, it will automatically turn off the light source.