Third is to solve the price problem. It is justified that the price is high. For families with the old and children, manufactures have the responsibility to explain which kind of light is contained dangerous substances and which is kind must be kept off children. The fact that 180 ton of water will be polluted with only 0.5 milligram of mercury is to be told as well. Besides, consumers must be made clear that the safety for the whole family is of the first importance rather than the spare money spent. Related chip is: TA78M10S.