LEDMY UL Certification (E477884), 300 LED Flexible Strip Light, DC12V SMD3528, IP20 6000K - 16.4 Feet (5 Meter) - Cool White Pass the USA certification UL and CUL,The certification number is E477884,More safety and Guarantee,Use CRI 80 or 90 led chips,The light output very close to the sunshine and health for human beings. Use our own design resistance,help all the LED chips be balance when it work, The led feet is gold,It will be help the led chips with best heat dissipation,Then LED can reach 50,000hours lifetime The LED strip&#39;s PCB use pure copper and double lines to work,more safety for human beings Advanced LED packing skill to make the 4 bins LED chips,the light output is coherent and uniform.It will be comfortable for eyes