Product Features Color transparent red bulbs / green wire. Number of bulbs on string 50. Bulb size C9 wide angle bulb with a C9 light cover . Spacing between each bulb 4 . Lighted length 16'. Total length 17'. 4 lead cord. 5 tail cord. Additional Product Features LED lights use 90% less energy. Durable non-glass replaceable bulbs. Cool to the touch. UL listed for indoor or outdoor use. If one bulb burns out, the rest will stay lit. Each socket has a clip on it for securing to trees or other surfaces. Comes with replacement bulbs and spare fuses. Contains end-to-end connectors which allows you to connect multiple sets together not to exceed 210 watts . Wire gauge 22. 120 volts, 60 hertz, 0.02 amps, 2.4 watts. Material s plastic bulbs/wire.