There are various types of headlamps used for different professions. You have to select the specific type as per your work requirement. They are headlamps for firefighters (waterproof & shockproof), mechanics (high luminous intensity with spot beam), mineworkers (bright light for a longer time without causing static) & oil rig works (same as mineworkers but won’t require bright light). It allows you to work with both hands while still providing enough illumination. It makes it easier to move around as you go on your way, especially while crawling into tight spaces. Also, it let you visible to prevent horrendous accidents from happening with its bright light. So, it’s worth purchasing the perfect headlamp to perform your function/activity.