(Color Spatial Uniformity), such as changing the color change in perspective, must be located from the CIE 1976 (u ',advertising signs, v') chromaticity diagram of the weighted average point (Weighted Average Point) of 0.004 or less.The color change during the life of the product in the CIE 1976 (u ',for sale signs, v') chromaticity diagram should be within 0.007 of its interior lights for color rendering index (Color Rendering Index) is also required for more than 75.As for the other, the lamps in the closed state (Off-state Power) shall not consume power. But for the living, exercise,neon beer sign, light conol, or with external conol and the wisdom of individually addressable light as an exception, and its power consumption when turned off no more than 0.5 watts. Energy Star also requires manufacturers to provide 3 years from the date of purchase to repair or replace damaged parts, including the light source and power supply warranty, for domestic products, its written warranty must be shipped attached to the lamp packaging, and lighting .Manufacturers should also comply with the thermal management component manufacturer's guidelines,LED scrolling sign, certification programs and testing procedures.