Ideal for either indoor or outdoor use, this 100-bulb Dual Color® LED light set features Infinity Lights® that utilize a tiny rice-size bulb built right into the light string wire. With the Dual Color system, bulbs change from warm white to multicolor and include a choice of 9 light functions. The string is battery operated -- eliminating the need to be close to a power outlet -- providing unlimited light display options. Included is an integrated 6 hours ON / 18 hours OFF timer for added convenience. The string has 6" spacing between bulbs for a total lighted length of 72 ft. LED bulbs are energy-efficient and long lasting.