# of Sockets: 25 or 50 Cord Length: 29FT or 54FT Spacing Between Sockets: 12" On/Off Switch?: No Drop Distance: 3-inch Cord Color: White Suitable Environment: Indoor / Outdoor (Commercial Quality - Great For Permanent Installation) Included Bulbs: Colored 1-Watt Shatterproof LED Light Bulbs Included Bulb Base: E12 Candelabra Base Bulb Wattage: 1-Watt (500W Max String Total) Power Connection: AC Plug-In Expandable End-To-End?: Yes End-To-End Connection Limit: Up to 8 Cords Total (when used with included 1-Watt Bulbs) Wiring Type: Parallel - Other bulbs stay lit if one goes out Wire Gauge: 18 Gauge WeatherProof?: Yes, Rain Resistant. PVC socket forms a tight weatherproof seal around the bulb. Voltage: 120V AMP: Please note these cords can be plugged end to end, but please do not exceed the recommend Amperage of the cord. To calculate amperage of the cord, please use the following formula:Total Number of Bulbs x Bulb Wattage x 1.05 / 120 = Total AMPS