Old high pressure sodium lamp lights demanding enough brightness can be directly converted into solar led street light!
demanding high pressure sodium lamp
the old street lamp brightness is not enough can be directly converted into solar led street lamp' Based energy as the earth's resources increasingly poor, the investment cost of the surging, all kinds of safety and pollution hidden danger is everywhere, the solar energy as an 'inexhaustible, an inexhaustible' safety, environmental protection, new energy more and more attention. 】 !