For LED lighting with aluminum substrate, there are many processes, such as spray tin, gold, silver, gold, silver, the most common is spray tin (divided into lead and lead free)...

        Aluminum substrate silver plating is one of the aluminum substrate process, that is, a layer of silver plating on the surface of the aluminum substrate material, which can better promote the conductive effect and transmission effect of the line, silver plating on the surface of aluminum is the mainstream process in the market, and it is also a trend in the development of aluminum substrate in the future.

        However, silver-plated aluminum substrate has a disadvantage, it is very easy to oxidized, such as unpackaged treatment, so that the silver-plated layer is exposed to the air; Direct human contact; Long-term unused, storage environment does not meet the requirements are easy to oxygen. In addition, the price of silver plating is relatively high and the process is more complex, so it is not widely used in the market at present.