The Christmas Light Emporium is the home of the original every 4th bulb cool white strobing 5mm LED strobe light string – Dazzle! Nothing beats Dazzle – the best quality, most 5 star rated, commercial grade, field tested every 4th bulb cool white strobing 5mm strobe lights available! This is not a twinkle string with a subtle on/off – this is a true *pop* LED 5mm strobe string that creates a fantastic effect in your light display. This version has 3 static green bulbs between each cool white strobing LED . Every 4th bulb on this string strobes randomly to create the effect of tiny camera flashes. When wrapped around a tree, through shrubs or on any structure, this string will make your display sparkle. These can be left on all night to create a magical environment. Specifications: 5mm dimmable LED strobe lights 50 bulbs on green wire 6″ Spacing Voltage: 120v 25′ total length with 6″ lead and tail UL rated for indoor and outdoor use Commercial grade Single molded (1 piece) design with non-removable bulbs improved moisture resistance Full wave rectified for flicker free sparkles Standard male and female end-to-end plugs Connect up to 40 sets end-to-end If one light goes out, the rest stay lit Cool White color temperature = 6000 kelvin