The FoxFury SideSlide Bolt Side Mounted Helmet Light is a combination flashlight and helmet light. Versatile light also has a highly visible rear safety LED.  
2 Lights in 1 Combination
The SideSlide is both a flashlight and side helmet-mounted light. That versatility helps out in scenarios where lighting needs change. 
Rechargeable Battery Option
This flashlight runs on two CR123 batteries. If you'd like to use a rechargeable power source, this light can also run on one rechargeable 18650 battery, which could save you time and money in the long run. 
Highly Visible Rear Safety LED
Being seen from behind is an asset in fire, rescue and industrial applications. The on/off switch flashes green when the light is activated and can be seen from over 1,200 ft (366 m) away. 
Rugged
This highly durable flashlight is made of high quality aluminum. It withstands impact and is suitable for use underwater. 
Anti-Roll Head
One of the last things you want to experience at a crime scene is having your flashlight roll (especially off a surface) as that means you risk contaminating the scene. This flashlight's square anti-roll head prevent this from happening. 
Hard Hat Mounted Adaptor with Secure SideSlide Lock
The bolt adaptor allows the light to be bolted on to select rescue helmets. Insert the light into the adaptor fully. When you hear a click, the light is locked securely into place and will stays there amidst vibrations, bumps or head movements. The flashlight can be removed by depressing the lever on the adaptor. 
Strike Bezel
In an emergency situation, this flashlight's strike bezel is strong enough to shatter your car windshield. It is also effective in self defense