Features: 1) Dimension: 1.1)3.0 x 1.9mm, 40deg's viewing angle 1.2)3.0 x 1.5mm, 65deg's viewing angle 1.3)5.0 x 2.5mm, 100deg's viewing angle 2) Emitting Color: red, green, blue, yellow, white, rainbow 3) Good heat dissipation results in longer service life 4) High reliability 5) Common cathode and common anode are both available at the same price 6) Packaged in slim plastic tube 7) Luminous intensity from 1000mcd until 10,000mcd is optional