Different modes The PWR Rider 450L comes with 6 pre-made modes to give you different options for using dependent on your different environment or battery life. 6 Pre-made modes: Ride: 450L, 2hrs Commuter: 190L, 5.5hrs Stamina: 50L, 16hrs Pulse: 320L, 7hrs Strobe Flash: 190L, 10hrs Eco-Flash: 50L, 90hrs If you would like a larger range of modes to give you even more variety you can use the Knog’s ModeMaker app to update and add more modes to your light. Power Bank The light is charged through a USB port at the rear of the light. This can also, cleverly, be used to plug in and charge your phone, GoPro, navigation device or cycle computer. This means you can charge on the go. For example, 1 hour of riding at 250 lumens while your phone is plugged in to the charge port will top up your iPhone charge by 35%. Comes with four small lights that indicator your bike lights battery life. Elliptical Beam The PWR Commuter 450L has an elliptical beam for both wide view and also as a spot beam for intense light in front of your front wheel. Mounting the Light Comes with a base that attaches to the bottom of the light. There are two holes to choose from on the mount depending on your bar diameter.