Recently Philips in Chengdu announced a new masterpiece: the Master LED bulb. The 7W Master LED bulb has a luminosity equivalent to a 60W incandescent bulb with an energy efficiency of around 85 percent. The life span of the bulb is about 15 years with the ability to be switched on and off roughly 50 thousand times. Such a long life span allows consumers to avoid the troublesome task of replacing bulb after bulb.