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A powerful bike light with tough aluminium shell suitable for mountain biking and road biking. Boson is small and compact with a Li-ion rechargeable battery and a Micro USB port.

Boson has 5 lighting modes which are cycled through (excuse the pun) with a single illuminated switch. High power pumps out 850 lumens making even the darkest commute a tunnel of light. Turn it down to medium power and you still have 320 lumens to play with - more than enough for negotiating un-lit cycle ways and paths.

If you want to be seen rather than see where you are going switch out to the 6 or 3 Hz flashing modes. Bright enough to be seen even during daylight hours, it really comes into its own during the hours of twilight and dusk.

A mounting bracket is included (fits 18 - 36 mm bars and no special tools needed). Once attached Boson can be fixed or removed with ease. It allows 360 degree rotation for complete control over your beam of light; the textured lens projects a smooth wide beam ideal for nocturnal riding.

Note: Boson doesn’t take a "standard" 18650 battery - the battery has both anode and cathode at the same end. Do not switch on Boson during charging as it could damage the battery.


Key Features

  • Strong aluminium housing
  • Maximum 850 lumen power output
  • Rechargeable Li-ion battery via Micro USB cable
  • Handlebar mounting bracket
  • 3 Year Alpine Bond

Vital stats

Main light

1 x XP-L Cree white LED High power: 850 lumens / 3 hours Medium power: 320 lumens / 7 hours Low power: 100 lumens / 17 hours 6 Hz flashing: 20 hours 3 Hz flashing: 20 hours


1 x 3.7 V 2600 mAh Li-ion rechargeable 4 hrs charging time (DC5V 1000 mA input) via micro USB cable Protected circuit


Weight: 185 g (inc battery) Size: 30 x 128 x 30 mm (without bracket) Size: 30 x 128 x 72 mm (with bracket) IPX4

Origin: China