Patio bulbs are decorative LED or incandescent bulbs designed for use in outdoor string lighting. Available in styles like globe, Edison filament, and teardrop, they offer warm, inviting illumination perfect for patios, cafes, and events. Most patio bulbs are shatter-resistant, energy-efficient, and weatherproof for year-round use. They come in a range of color temperatures and are compatible with E26 or E17 sockets, making them an easy upgrade for most string light systems.