LED string lights have many advantages over traditional incandescent string lights. First, you can connect far more strings end to end. If connecting just this set of 100 lights, you can connect up to 27 strands end to end. If combined with other stands do not exceed 216 watts (1.8 Amps). Second, LED sets are more cost-efficient over the life of the product by only using 25% of the energy of a comparable incandescent string light. Third, our LED string lights are more durable than incandescent strings. Our LED string lights feature a plastic bulb cap and a durable light-emitting diode, versus incandescent string lights that feature fragile filaments and glass bulb caps. Fourth, LED sets do not get as hot to the touch as incandescent light sets which can pose increased safety risks.