How does the light turn on; that is, can it be operated by one hand, or do you need to use both hands to turn it on and off?
MARGARET C The top turns. You need two hands to operate it.
SARAH D You twist the top to turn on/off. It would require two hands. It's overall a great light--provides lots of light for the compact size with minimal weight.
BILL N Requires both hands. Twisting lens cap turns it on. Also very bouyant which is or can be an issue. Not as bright as I had hoped.