If you are buying multiple colors add one at a time to your cart. You will still receive the volume discount for EGA515.If you or your dog can dish it out, this signal light can take it. Great as a primary or backup collar light. Unbreakable lifetime LED pumps out nearly 1 lumen of brilliance that can be seen up to 2 miles away. Included lithium-ion battery provides more than 100 hours of steady light or over 250 hours in flashing mode. Waterproof to 3 ft. Available in colors:Green,Blue, Clear,Red, and Orange.