The lamp is very bright, small and robust. 300 lumens are perhaps a little high side (as with almost all LED products is often exaggerated), 200 lumens should be realistic. That's still more than the average person needs. Due to the small size, I bought several identical as to always have a lamp while in the car and on walks.
One should incidentally note that Amazon the same lamp is offered in several different versions. Many have different light modes (light, dark, SOS etc), where the lamp but not "remember" the last mode will change and again turning to the next mode. This lamp here knows just on and off, thus protecting nerve.