"The perfect raver shades! Not to bright, not too dull, a perfect brightness to rock and roll :). As far as LED Glasses go these are by far the easiest to see through while dancing, and also some of the more durable LED Glasses available! These LED Glasses come with three modes Fast flash (strobe), slower flash, and a random mode. While in slower flash mode the lights will light up in an alternate pattern from top to bottom. The random mode will light up in a similar way to the slower flash mode where the top lights alternate with the lower light however in random it also fades from bright to dark and vise versa."