Product Features Color opaque white light covers / color changing clear bulbs / black wire LED bulbs change from blue, red, green and purple Number of bulbs on string 20 Bulb size G45 light covers over small LED mini bulbs Bulbs are non-removable Light covers 1.75 diameter securely screw on and off Steady burning bulbs Spacing between each bulb 19.7 Lighted string length 31' Total string length 47.4' Additional Product Features LED lights use 90% less energy Lights are equipped with clips on the sockets which allow you to easily attach the lights to trees, wreaths, garlands and more If one bulb burns out, the rest will stay lit Cool to the touch End connectors with the same opening of 0.5 inches allow you to connect multiple sets together connect up to 5 sets UL listed for indoor/outdoor use 120 volts, 60 hertz, 0.055 amps, 6 watts Material s plastic light covers and bulbs/wire