How to buy LED replacement lamps

　　First, look at the product packaging:

　　(1) Whether LED replacement lamps have a product trademarks and certification marks? Is it marked in line with national standard GB7000, and its international quality mark?

　　(2) Whether LED replacement lamp is clearly marked on the product's rated voltage range, color temperature, precautions, safety instructions, suitable environment, etc., carefully read before installing LED replacement lamps!

　　Second, LED replacement lamp product price comparison

　　Because LED lamps for special reasons in the production process, the cost is relatively high, 8 yuan / W is almost normal quality LED products.

　　Third, LED replacement lamp appearance of the product:

　　First look at the LED replacement lamp appearance of the product, Is it very rough? Or Are the glue cleaned? Whether there is a fixed screw protruding plane? Whether the color of the screw and the housing of the color of are the same?

　　Fourth, the lighting inspection:

　　1. When LED replacement lamps lit, it should be carefully observed changes, if in a short time, the yellow light become into a white light, or by a white light into a white light with blue color, such products will have given up, because this cases have two possibilities: one: power problems; two: LED light source selection turnovers. In addition, the color of the lamp must be positive, lamp light and color are the same, it means it does not flash.

　　2. When the LED lighting started, it can touch the product surface temperature by heat detection products, and if the product surface temperature in one hour continued to rise, rather than a maximum temperature stabilized at 30 minutes, then it does not select the product, due to the thermal reasons, resulting in shortened product life.