I found the O-Bulb a nifty little light. It is convenient in its small size, four different modes and magnetic charging system. The Low setting is low enough to not be a distraction or be too bright as a night light where a child is sleeping. The High mode is bright enough to light up a small room in case of a power outage. The Red modes are good as a signal beacon. It has a magnetic bottom so it can be attached to the hood or trunk of a stranded vehicle at night. The O-Bulb has a plasticky feel. The tint on the White modes is a Neutral White and the O-Bulb has a useful lock-out mode. The battery cannot be removed.

I found the runtimes to be close to advertised. I got less than three hours on Low, before the light became very dim and pretty much useless. On High, I got about 45 minutes, before a noticeable dimming to what looked like Low mode, and that lasted for about another 30 minutes before it was too dim to be useful.

Overall, I am happy with my purchase of the O-Bulb.