As a professional LED module manufacturer, Cosmos Lighting Technology Co., Ltd releases a series of new type LED COB modules. These new modules cover 3W, 4W, 5W, 7W, which are mainly used in LED bulb. These new COB modules' most outstanding feature is applying copper cup to help heat dissipation. As is well known that copper has the better dissipation than aluminum, thus the copper cup will transport the heat faster and better than the traditional ones- aluminum. Secondly, the CRI of Cosmos Lighting COB modules reaches 75. The CRI is close rela...