100FT Patio String Lights - 100 FT LED string lights for outdoor use, comprising 37Pcs ST38 vintage bulbs and 2 spare bulbs; E12 bulb base, each bulb measuring 1.5 x 3.2 inches and a colour temperature of 2700K warm. Shatterproof & Easy to Install - Our ST38 shape bulbs are unlike fragile glass bulbs and other thin plastic bulbs, these thick, PET impact-resistant, shatterproof bulbs will not break if dropped. Hanging these patio lights is a breeze with the built-in hooks. Weatherproof and Safer Our weatherproof technology ensures that these durable outdoor string lights can withstand rain, wind, snow, and extreme temperatures up to 158 degrees Fahrenheit, allowing customers to leave them outside year-round with confidence. Furthermore, the bulb shells are made of hard anti-drop plastic, providing customers with protection while hanging the waterproof backyard string lights, eliminating concerns about sudden broken glass shards. Energy Saving - It's time to upgrade your outdoor lights with the latest LED outdoor string lights! These advanced LED bulbs are not only super energy-saving, but they'll also reduce your electricity bill by up to 98% compared to traditional incandescent bulbs.