Helmet Lights

Battery options: When purchasing lights for your bike, the helmet light is the one light that is not directly attached to your bike, rather, it is attached to your helmet, meaning that it is the most portable light. This means that upon arriving home, you can easily detach the light from your helmet, before either charging it through USB, or removing the rechargeable batteries and charging them, as you can easily carry spares so that you can swap the batteries out on the fly, to gain a much longer run time.
Waterproof: Many riders are required to ride in harsh weather conditions during difficult times of the year. Luckily for them, many of our helmet lights are weatherproof, meaning that the light can operate in perfect working condition in any weather and any time of the year.
Weight: A helmet light is designed to be mounted to your bike helmet so that you can view things clearly, in any direction simply by looking at it. Because of the nature of the mounting position, it is imperative to any serious rider that the helmet light that they choose to rely on be lightweight and well built, so that they can retain full mobility of their head and not have their movement obstructed in any way.
Biggest Pro: Choosing to wear a helmet light in conjunction with also a bike light or not is that your helmet light will always follow your line of sight so no matter if you come up to a crossing you can look both ways and see both ways. Furthermore everyone else will be able to see you if you are looking at the, something a front bike light would not be able to achieve.