# of Sockets: 50 Socket Type/Size: C7 Candelabra Base Cord Length: 54FT Spacing Between Sockets: 12" On/Off Switch?: No Drop Distance: None Cord Color: Black Suitable Environment: Indoor / Outdoor (Commercial Quality - Great For Permanent Installation) Included Bulbs: Not Included Bulb Base: E12 C7 Candelabra Base Bulb Wattage: Up to 5 Watts Recommended (500W Max String Total) Supported Bulb Types: Incandescent / LED Power Connection:AC Plug-In Expandable End-To-End?: Yes End-To-End Connection Limit: Up to 2 Cords Total (when used with included 5W Bulbs) Wiring Type: Parallel - Other bulbs stay lit if one goes out Wire Gauge: 16 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 calcuate amperage of the cord, please use the following formula:Total Number of Bulbs x Bulb Wattage x 1.05 / 120 = Total AMPS