400 three color the timer technology parameters and traffic light product description

Type 400 three color the timer, the domestic many production, most with 800 * 600 or 1200 * 900 countdown timer, but in real engineering, not need so big of the timer on the small intersection, would increase the cost of engineering, so choose 401 countdown timer is Richard

400 type three color countdown timer, many domestic production, most with 800 * 600 or 1200 * 900 countdown timer, but in real engineering, a few small intersection needn't so big of the timer, would increase the cost of engineering, so choose 401 countdown timer is rational choice. Highway is the use of 401 timer, used to display speed. Does not mean low quality, low price because we complete production process, a batch of 500 sets of production, the components cost is relatively low, in addition to welding, cutting, automatic wave soldering and machine production, greatly reduces the labor costs, so low price. Product quality in the design part, 70% and 20% in production, and 10% in the aging test, these three aspects are for us to lean improvement. Product description: stroke style, two red, yellow, green, the countdown, because the yellow light are often less than 6 seconds, so the left no yellow light, a yellow light on the right. Lamp bead materials is sufficient, every stroke of each color contains 12 lamp bead, three lines of the double arrows. Two digital period of green lights, a total of 168, 168 red light, yellow light, 84. Lamp bead number many parallel series high, even if the individual lamp bead because of disrepair is broken, also does not affect the overall display. In addition we use string and mixed constant current drive circuit for power supply equipment, ensure the service life of the LED lamp bead, the Taiwan famous brand LED the wick lamp bead. Points from two ways of learning and communication type choice, especially in communication style, can be convenient and signal linkage, implement change cycle and operation time.