LED Guardrail Tube,led guardrail light Working voltage: 12V/24V (DC, AC), AC110V/220V Tube color ... circles theory, after numerous round light refraction, LED light perspective reach 250 degrees, Strong visibility;5. LED is solid cold light source, epoxy resin encapsulation, no ... to ensure LED long use life;6. High brightness LED light source, color brighter, pure color without spots. Red, green, blue, ...