The invention provides a large power LED lens which has averaged
facula uniformity, reasonable structure and convenient installation, and can meet the requirement of large power illumination of street lamps. The LED lens has the advantages of beautiful
facula, uniform
facula, convenient installation and the like. The LED lens comprises an installation base which is provided with a U-shaped concave trough which is concave inwards; the U-shaped concave trough is internally provided with an LED
bulb; the upper surface of the U-shaped concave trough is provided with four surfaces sequentially as follows: a first parabola non-sphere, a second parabola non-sphere, a third parabola non-sphere and a fourth parabola non-sphere, wherein, the first parabola non-sphere is symmetric to the second parabola non-sphere, the third parabola non-sphere and the fourth parabola non-sphere; the LED lens is designed according to the concept of rectangular facula on the
road surface, utilizes the secondary optical principle to lead the facula to be uniformly distributed on the four surfaces of the LED lens, has the advantages of uniform facula illumination on the
road surface and reasonable distribution of
light beam, reduces the ineffective loss of the
light beam, and has low price, convenient installation and generalization significance.