Heavy Duty Commercial Grade String Light, 21 Ft. Strand by LampLust, 10 E26 Sockets, UL Listed, Connectable, Bulbs NOT Included - For Patio, Porch, Backyard & More DURABLE & VERSATILE &#10003; - Our 21 foot commercial-grade string light strand has a thick, durable black cord that is suitable for both indoor and outdoor use. NOTE: Bulbs sold separately. WATERPROOF &#10003; - This string light is made from a heavy duty rubber designed to withstand the elements. In addition, each socket contains a rubber gasket purposely placed for a weather-tight seal. CONNECTABLE &#10003; - Strand length: 21 Feet | Lead wire: 2 Feet | Bulb to Bulb: 2 feet | Connect up to 5 strands to illuminate any space! CHOOSE YOUR BULBS &#10003; - This product has 10 full-sized sockets that can be used with any E26 size light bulbs up to 60 Watts each (600W total wattage). CUSTOMER SATISFACTION GUARANTEED &#10003; - LampLust is looking out for your satisfaction. Please contact us through seller messages for all questions or concerns. This 10-Socket outdoor string light has a 90-Day Warranty.