Product functions and features 1.PC housing,aluminum housing and cold-rolled steel housing for option. 2.waterproof,dust proof,anti-lightning and surge protection,anti-vibration and long lifespan. 3.The core circuit adopts SCM,the countdown timer can run stably by adopting“Independent Clock Watchdog"software and anti-disturbing measures of the hardware. 4.Modular design,easy for maintenance and replacement. 5.Comply with GAT508-2014 and relevant international standards. 6.Working modes:Learning type,communication type and trigger type,which can be compatible based on the requirements from the customers. Technical Parameters Diameter Color Light Intensity Wavelength Power Input Voltage 600mm*400mm Red ＞5000cd/㎡ 625±5nm ≤11W 12V/24VDC AC85-265V 50/60Hz Green ＞5000cd/㎡ 505±5nm ≤12W Yellow ＞5000cd/㎡ 590±5nm ≤12W Working Temperature -40℃～+80℃ Outside Material Cold-rolled Steel or Aluminum More Photos of single digit traffic countdown timer Our Exhabition Process of Produce traffic light FAQ Q1: What is your single digit traffic countdown timer range? A: Single digit 600x400 mm Traffic Countdown Timer timing range 1-9s     Or can show fixed number use in toll gate Q2: How many kind of material of single digit traffic countdown timer have? A: 200mm,300mm,400mm,400x600mm,600x800mm,accept customized    Material : Cold-rolled Steel ,Aluminum,or PC Q3: Do you test all your traffic signal light before delivery? A: Yes, we have 100% test before delivery,all traffic signal light use aging test 72hours before package. Q4: How soon we can get a sample of single digit traffic countdown timer? A: 7-10days usually,this kind traffic light is customized Q5: What’s warranty of your countdown timer? A:  2 years warranty but can use 5 years is no problem. Q6: what else we should notice before we place order? A: must need supply which kind Hz in your country,this is very important.