Forget about buying batteries! This clever engine has its own solar panel that generates enough electricity to power its lights. Watch it shine brightly as you push it along the tracks! Ages 3 & up. 1. Charge the engine by exposing the solar panels to sunlight or a bright internal light source. 2. Use the switch on the front to turn on the front headlights and red, orange and green internal lights. 3. Push the train along the track in the dark for cool effects.