Larger and higher density solar panel enable fully charger 2400mah battery easily even in cloudy weather. 2400mah battery means the lighting can much brighter and lasting much longer. Detachable design allow it take the solar panel to outside for changing separately,leave the rope light indoor. Waterproof and safety voltage operate,no worry about outdoor rainy day. 8 lighting model,freely change the model according to your mood and atmosphere.