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For 8" gas price changer 1、Technical Specification： - Spec：Φ**6 R or G or Y - Color：1R or 1G or 1Y - LED brightness：**0mcd to ***0mcd - Size：8" - Number of pixel：*0 - Weight：4.5 KGS - Viewing angle：≥**0o - Drive mode： static state -Lose control of point：≤0.3‰ - Communication mode：(RS***2，RS***5)，Wireless Range (Using remote control not less than *0m in short distance and long range system for **0m) - Power voltage：AC**0V***0V - Operating environment：－*0℃ to＋*5℃ - Working hour：MTBF≥****0h - Life of the oil LED sign：≤****0 hours - This product pass through UL approval 2、Function： - LED brightness will automatically carry on the adjustment to the light strong And the weak on the environment condition； - Three different voltage, *6.*5W at daylight, *5.*5W at cloudy day, 3.9W at night； - Fan will be open automatic when the temperature reach to ≥*5℃, LED brightness will lower when temperature reach to *0℃ and the system will turn off when it is reach to *5℃ to protect the signs； - Wireless communication solution is offered and customer can check the signs status through the computer. Battery Back-up Memory（Battery back-up will save data when without power) AVAILABLE SIZE:8", *0", *2", *5", *8", *6", *2".