Quantity: 300(+/-2%) pieces / Pack(3 colors x 100 pcs)Lens: 5mm Diameter / Straw HatEmitting Color: Red,Green,WhiteForward Voltage / Current: 3-3.4V(Green,White) 1.9-2.1V(Red) / 20mAPolarity: Anode (Longer Part) | Cathode (Shorter Part)These light-emitting diodes work well for a wide variety of applicationsIt is great for electronic and electrical experiments