Description
Smart Bicycle Rear Light, Brake Sensor - Transparent / Flat
This bicycle light is designed to improve the cyclist's visibility and signal their presence more clearly as light levels decrease. Its compact design and various modes make it easy to use for daily commutes, sports rides, and travel after dark. Offered by WEST BIKING, this model is presented below with its original specifications reorganized to make comparison and selection easier.
Product highlights
- Durable, wear-resistant, drop-resistant aluminum alloy, stronger: the main body of the bicycle light is made from aluminum alloy, which is more resistant to scratches and drops
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Light detection, automatic light activation: in smart mode, the built-in photosensitive element monitors the ambient brightness, automatically turns on in the dark, and automatically turns off in bright light
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COB light beads: 20 COB light beads provide bright light without glare
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Smart brake detection: after detecting braking, W4S immediately switches to brake-light mode. The rear light becomes very bright for 2 seconds to remind those behind to pay attention and improve safety
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Vibration detection, automatic wake-up: the rear lights automatically turn off when stationary for one minute with the lights on, and automatically turn on when they vibrate
Visibility suited to traffic conditions
The steady or flashing modes mentioned in the specifications allow the light signal to be adapted to the environment. A continuous mode provides a stable presence, while flashing attracts more attention in shared areas or when visibility is reduced.
Position the light so that it remains visible without covering the bicycle's reflectors. A front light should be aimed along the path without dazzling other road users; a rear light should remain unobstructed behind the cyclist, even when the bicycle is carrying a saddlebag or loose clothing.
Installation, charging, and battery life
Carefully secure the mount to a compatible area, then check that the light does not rotate due to vibrations. Before a night ride, check the battery level, the operation of the controls, and the selected mode. Battery life naturally varies according to the selected intensity and the automatic functions that are activated.
For charging, use the cable and power source appropriate to the manufacturer's instructions. Properly close the connector cover before riding again. Regular charging helps keep the light available for unexpected journeys.
Use in bad weather and maintenance
The stated water resistance applies to splashes or rain according to the rating specified in the characteristics; it does not mean that the product can be submerged. After a wet ride, wipe the housing and wait until the charging port is completely dry before connecting the cable.
Clean the light-emitting surface with a soft cloth to prevent dust from reducing visibility. Periodically check the mount and alignment. The light complements reflective elements and the cyclist's vigilance, but does not replace compliance with traffic rules.
Technical specifications and contents
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COB light beads: 20 COB light beads provide bright light without glare
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Smart brake detection: after detecting braking, W4S immediately switches to brake-light mode. The rear light becomes very bright for 2 seconds to remind those behind to pay attention and improve safety
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Vibration detection, automatic wake-up: the rear lights automatically turn off when stationary for one minute with the lights on, and automatically turn on when they vibrate
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Beads: COB beads
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Battery: 400 mAh lithium battery
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Size: 65 x 48 x 33 mm
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Brightness: 60 lumens
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Weight: 40 g (without mount)
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Mode: slow flash/breathing flash/fast flash/steady light/double flash
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Housing: aluminum alloy
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Smart functions: brake sensor/automatic start and stop
Prepare properly for use
Before first use, check the size, dimensions, compatibility, and all received components whenever these criteria apply to the product. Make the necessary adjustments while stationary, then carry out a gradual test in a safe environment. This check helps quickly identify an uncomfortable fit, inadequate fastening, or a mispositioned part.
Keep the manual and supplied accessories. After dusty, wet, or intensive use, clean the product appropriately and store it in a dry place. Regularly inspect the seams, surfaces, fasteners, and relevant wear areas; replace any part showing abnormal damage before resuming use.