The Fantasia Fairy Garland string lights features our dual color LED option which can be set on cool white or warm white glow. The decorative light string is a strand of 40 duel white LEDs with varying lengths; all emanating from one point. Smaller strands branch out from the main strands. You can use these in a bundle or spread them out to cover an area. This product can be used under water as long as the battery pack and connecting wire remain dry (submerge only from the silver wire on). Uses 3 x D cell batteries (sold separately).