... .7 V 3000mAh lithium battery 2. LED:3.0 V / 4W 3. Solar recharge time: ... .5 W monocrystalline silicon longevity: above 10 years2. Battery: 3.7 V 3000mAh lithium battery2. LED:3.0 V / 4W3. Solar recharge ... , star-rated hotel, the courtyard, garage, basement, balcony, corridor, toilet, storage room, elevator front office, etc place), smooth and stable operation ...