1、LED luminous diode lamp holder is responsive with meticulous workmanship, stable structure 2、3-Pin common cathode lamp holder is wear-resistant and dust-proof, possess strong hardness 3、Come with single-hole double color, clear light-emitting parts, very durable for a long service life 4、Good-quality nylon material, possess smooth surface, heat-resistant, corrosion-resistant 5、Used for LED lights to emit light, the operating temperature can be between -20℃-120℃, and the working voltage is DC 1.8-2.2V Item Type: LED Luminous Diode Lamp Holder Material: Nylon Type: Common cathode mist(two color indicators share a negative electrode, the light-emitting part is milky white, and the content inside is not clear) Working Temperature: -20℃-120℃ Use: LED light shines 20 x LED Luminous Diode Lamp Holder