LED light letters are made of light emitting diodes as light sources. Leds can save a lot of energy for the country and the user, and a lot of man-hours for the contractor. In the development of LED application technology in our advertising, its unique semiconductor ultra-high brightness light-emitting diode (LED), especially nitride white light-emitting diode, has the advantages of small size, low current, long life, fast response, no ststrobe, less energy consumption, less heat and so on. It is gradually becoming a new generation of green, energy saving, environmental protection, long life lighting source. LED luminous waterproof lamp string complex into simple, arbitrary, give full play to the advantages of the point light source, any combination, reflecting randomness, let LED exposed luminous words, large outdoor LED advertising signs more simple production! 2. Special bayonet design, direct installation after punching, rapid installation time, ensure reliable connection while completely get rid of manual welding, avoid LED by latent damage, greatly shorten the production cycle, effectively reduce installation and maintenance costs, reduce bad losses, completely solve the LED project maintenance difficult situation!