Specification:Lens: 5mm diameter transparent roundForward voltage: DC2V-2.2VCurrent: 20mAEmitting color: yellow (588-592nm)Luminous intensity: 1500-2000mcdQuantity: 100 pieces / packViewing angle: 30Polarity: anode(+) (longer part) | cathode(-) (shorter part)Package included:100PCS 5MM yellow LED diode