🌟Solar panel and string lights both are well made and solid, the bulbs are replaceable and the set comes with 26 bulbs (1 extra bulbs). 🌟IP65 waterproof make them truly all weather-proof, even in the rainy, storm day, no worry the water will get inside the bulbs. Better made and more robust than the "Christmas Tree" light strings, you can use all year round. 🌟USB Rechargeable, Never Runs out Power. In rainy or cloudy days, charge the light with USB cable (not included), and then use it as a portable indoor outdoor string lights. 🌟G40 solar string lights outdoor, with 4 lightening modes designed: quick flash, steady light, slow flash and pulsating flash.