Commercial grade for year-round, permanent outdoor installations; Durable, impact-resistant acrylic bulbs won't break if dropped or stepped on; Ideal for patios, pergolas, gazebos, home accents, parties & camping; Linkable up to 350ft; LEDs reduce energy usage by over 95%; Never any bulbs to replace; Warm white light--2,700K; UL listed; Flexible mounting options; Requires mounting hardware; 18ft; 9 acrylic bulbs;