Countdown Timer Of Three Digits

We are offering our customers a wide range of Countdown Timer of Three Digits, which are available following Specifications :-
1) Lamp shape & Size: 812*612*100;
2) Lamp Color: Tricolor;
3) Size of per digital: 540mm*300mme;
4) Axis Luminous Intensity > 4000 CD/m2;
5) Relative Humidity: 95%;
6) Input Voltage: AC230V+/-10%, 50-60Hz;
7) Power Consumption: < 25W;
8) Operation Temperature: -40~+60 degrees;
9) Working Mode:
A: This LED countdown display detect and memory phase time automatically and will start to count down in second cycle.
B: The LED digital won't light up during the first detect cycle and will start to light up and count down immediately at the beginning of second cycle.
C: The red/green LED in this count down display will light up at the same time.
D: When the LED traffic signal lamps turns to yellow phase