The Bookman Volume™ is available in two models. The Award-winning Volume™ 1500 and Volume™ 800. The Volume™ has a smooth rectangular body with a single flush button on top to turn it on and off as well as switch between strobe and constant light. On the front is a 1500 or 800 lumen light with side markers for greater visibility. On the side is a large knob, which bookmen calls the Power Wheel (patent pending), that firmly clicks through 5 different modes, with the most clockwise orientation being locking the top button from accidentally turning on or off. The Volume™ uses a weatherproof USB-C port for charging, and you can charge while in use which is great for those really long night rides.
The Bookman Volume™ 1500 has an aluminum body with a 1500 lumen light and weighs 215g. The battery is a 4000 mAh 21700 Li-Ion battery offering up to 34 hours of constant light or 105 hours of strobe.
The Bookman Volume™ 800 has a plastic body with an 800 lumen light and weighs 130g. The battery is a 3200 mAh 18650 Li-Ion battery offering up to 35 hours of constant light and 120 hours of strobe.
The replaceable battery feature of the Bookman Volume™ has a few key benefits that many may not consider. To start, you can purchase additional batteries for quick and easy battery swapping while out on a ride. Additionally, as the battery loses life overtime, the battery itself can be recycled and the light can be outfitted with a new battery allowing it to serve you for years to come.
There is an IPX5 weather resistance rating, this offers protection from low pressure water. Unless you’re riding at 100mph in the rain, the Volume™ can handle the wet seasons with no concern of water leaking or damaging anything.
Bookman offers a 2 year warranty on the Volume™, which we would be led to feel as though they would be happy to work with you years down the road if anything were to happen. Bookman is in the Visibility game to make things safer for cyclists and has been for over a decade.