sell LED gas pricing board

1.LED brightness will automatically carry on the adjustment to the light strong And the weak on the environment condition.
2.Three different voltage,26.25W at daylight,15.75W at cloudy day,3.9W at night.
3.Fan will be open automatic when the temperature reach to ≥45, LED brightness will lower when temperature reach to 70 and the system will turn off when it is reach to 85 to protect the signs.
4.Wireless communication solution is offered and customer can check the signs status through the computer .
5.Battery Back-up Memory (Battery back-up will save data when without power).