I am growing very fond of these little lights. They appear to be as bright as my large LED lights, give a good blink effect when needed and small enough to even carry in my purse. Best of all they remain out of the way when I fold the Brompton. I usually have to adjust the large LED light before I fold the bike when I am getting on a train and sometimes the handlebar doesn’t clip in properly because of the light is in the way. But no problem in the folding with these tiny lights.