LED strobe light strings are a fantastic way to add some excitement to your Christmas light display. The bulbs on these strings flash on and off at a high rate of speed, creating an eye-catching, dynamic effect. These strobe light strings can be used in conjunction with steady-on 5mm lights to ground the display and create a perfect balance of movement and stillness. LED strobe light strings are a great option for those looking to add some extra pizzazz to their holiday lighting.