500 LED String Fairy Lights on 173ft (53m) Dark Green Cable; Complies with UL. Lighting with 8 Modes to provide the perfect environment for your decorative needs. With Memory Function, lights will work in the mode you set last time and no need to re-set. Low Voltage Transformer takes the output voltage down to really safe for use at home. IP44 Rainproof that makes the light string can be used in outdoor, but make sure the transformer protected from damp.