... ,safety voltage 2.energy saving,easy to sharp 3.CE,ROHS approval 4.Distance option Product features:falling led christmas lights,LED Copper ... ,green,blue,purple,pink,white,warm white and colorful.DC voltage:3V,4.5V,6V,12V,24VDistance between lights:5.6cm ... dia:0.4-0.5mmwire body color :copper and silverThe certificate we have:(PCE/CE/FCC/ROHS) Our products photos: