I have always purchased bicycle lights from well-known, recognized brands, and over about the past decade I’ve favored American brands such as Nite Rider (based in San Diego) and Light and Motion (which does manufacturing outside of Monterey, California).
Made-In-America from an established brand with a reputation for quality translates into a premium price, and to be honest, I’ve been disappointed in the operational lifespan of these lights. Every light I’ve bought from Light & Motion and Nite Rider (and I’ve bought a couple of dozen) breaks or fails not long after the warranty period expires. Either the mounting hardware falls apart, or the the light itself just stops working. The only light on my bicycle that hasn’t fallen apart yet is the Bontrager Flare R, which still works great and which I still love.
If I pay $120 or more for a bike light, I would kind of like if it lasted more than a couple of years. I’ve always been suspicious of no-brand Chinese-designed lights, but they’re beginning to look a little more attractive. To see how these cheap lights compare against these lights from American companies, I bought this Super Bright L2 Bike Light USB Rechargeable Waterproof Bicycle Headlight.
The Amazon product reviews are universally four and five star so I expect at least a thousand lumens from this light. I charge it up, go for a night ride, and it’s perhaps half the brightness of my Light & Motion Urban 800, which tests at 801 lumens. If I expect 1200 lumens, I’m extremely disappointed when I only see 400 lumens.