Description: Quantity: 500 pieces (50pcs for each size and color) Material: Wafer, Gum Usage: electronic toys, electrical products, light, etc. The best choice for electronic engineering installed Red and green LED voltage is generally 1.8-2.4V, blue and white is 2.8-3.4V, 3mm LED forward current 1-10mA, 5mm LED forward current is 5 --25mA. Specification: Size: 3mm, 5mm Package Includes: 500 Pieces of LED Lights with Box