I've tried a variety of bike lights over the years. Some have been as useful as a chocolate teapot! others are ok but bulky, fiddly to use, or the battery doesn't last for the duration of the ride.
I suppose you get what you pay for, but I've always been wary of spending too much on lights and receiving rubbish.
So what do you recommend? How much have you paid for your lights? Are they battery or rechargeable? How long did the charge last? Any other information, please feel free to share!