Many business place owners and construction companies are lack of specialized knowledge of lighting design. They take only brightness as a standard; however the color temperature, color rendering and uniformity standards should also be met in order to satisfy the atmosphere and metal and physical needs of customers. Different types of business places have different requirements for lighting. For example, supermarket chains needs high brightness and high color temperature of led high bay to create a sprightly atmosphere, and even make the brightness higher in the deeper end of the supermarket to attract customer to walk inside out; while high-end apparel stores need local lighting and low color temperature to create high-grade atmosphere and draw the focus on the products.