1. No AC/DC power, only solar powered. High energy-saved 2. Use poly-crystalline silicon, monocrystalline silicon solar panels 4. 5V Ni-mh batteries 2 x AA 1200mA, 12V 3. String length 11. 5m, 60 LEDs 3. Working time 12 hours/night 4. Environmental protection, green energy. 5. Many color available. Widely usd in Stadium, Garden, Market, Hotel, Dancery, Bar, Advertisement