Solar Powered LED Icicle Lights! Set Of 20! These Solar Powered LED Icicle Lights utilize the sun's energy for dusk to dawn lighting. The beautiful faceted icicles look like elegant cut crystals that fade from bright to light. Simply face the solar panel toward the sun and during the day, free solar energy is stored in the long lasting NiCad battery. convenient auction sensor feature automatically turns them on at dusk, and off at dawn! Features: Fades From Bright To Light. Energy Saver. No Outlets Or Electricity Needed. Set Of 20 - 4" Long Icicles. Over 10 Feet Long. Includes 1 Rechargeable Battery.