The Astrolux BL03 is a bike light with a maximum output of 1,200 lumens, a claimed beam distance of 300 metres and a 6,000 mAh battery. As well as lighting the road, it can serve as a power bank for charging a phone or GPS device.
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Light output and beam distance
The maximum output of 1,200 lumens is particularly useful on dark stretches without street lighting, such as forest tracks or routes ridden at night. The light helps riders see the route while also making them more visible to other road users.
The claimed beam distance is up to 300 metres. That does not mean obstacles will be equally easy to see throughout that distance: practical visibility also depends on conditions and the shape of the beam. When riding around other people, aim the light so it does not unnecessarily dazzle them.
Battery life and power bank function
The 6,000 mAh battery provides up to 12 hours of runtime. At maximum output, the light runs for approximately 1.5 hours, so brightness settings are important when planning a longer ride. No specific mode is given for the 12-hour figure.
The battery can also be used as a power bank, for example to top up a phone or GPS device during a break or when there is no access to mains power. Charging another device, however, uses energy that would otherwise be available for the light.
IP65 protection for riding in the rain
The Astrolux BL03 has an IP65 rating, indicating protection against dust ingress and water jets from any direction. This makes it suitable for dusty conditions and rain.
IP65 does not mean the light is protected against immersion, nor does it guarantee that it cannot wear out or be damaged. Before choosing a light, it is also worth checking its mounting method, charging method and beam shape against your intended use.
Who is the Astrolux BL03 for?
The BL03 can be used for city riding as well as on unlit routes. Its main strengths are its high maximum light output, dust and water protection, and ability to charge another device. On a long night ride, factor in the shorter runtime at maximum brightness and the battery power consumed when using the power bank.
