The lights have a nice design and good brightness, especially the front one. The autonomy for the front light is about 1.5 hours on high continuous mode or 3 hours on low or when flashing. The rear lasts longer. The problem is with charging. In the manual I found on the Cube website, it mentions a micro USB cable which is not included in the package, nor is the charger. In reality, the charging port is USB-C and the charger must be 5V max 500mA. In other words, you need to find a compatible adapter because, for example, with an iPhone charger, they DO NOT charge! When I thought the ones I got were defective, I tried a charger from another device (DJI) and finally they started charging (in about 3 hours for the front one). I thought this should be written because it took me a while to figure out what was going on and I haven't seen any other related mention.