I'm an auto/truck mechanic, and have used many many different lights, headlights, flashlights, you name it. The lightbar pro is pretty good,( hence only 4 stars). Pros, it's really bright and battery life is better than expected at full brightness,( have 3 batteries that last a 10 hr. shift, and they recharge fairly quick) it's tougher than it looks, it gets bumped, scraped, wet, dropped, and exposed to all kinds of nasty chemicals. The cons, the head band the lights attach to has wrinkles in it...