As one of outdoor & indoor advertising media, LED sign ,now has been widely used in many advertisers favor. But how to select outdoor led sign during the purchase ?

Purchase outdoor led sign requires not only high brightness wide viewing angle, far sight distance, but also consider the wind, rain, lightning protection, high and low temperature resistance and other factors, because the outdoor led sign may face various outdoor harsh environment in application, such as wind, rain, lightning, high and low temperature, sandstorm.

 So today, we are going to give you all three tips to help you purchase outdoor LED sign.

1.    Audience Visibility

Audience and wide, sight distance requirements far, wide view requirements; ambient light changes, especially may be subject to direct sunlight. In order to ensure led sign play image vivid and clear under strong direct sunlight, must use high brightness light-emitting diode.

And led sign display raw material selection from the perspective of new type wide tube, wide viewing angle, pure color, consistency, life span more than 100000 hours should be matching. Display package media is currently the most popular band cover along the square cylinder body, a silica gel sealing, no metal assembly; the appearance is delicate and beautiful, strong and durable, with prevent light reflection, dustproof, waterproof, heat dissipation, leakage protection characteristics.

2.    Waterproof Protection

Outdoor LED Sign, often exposed to the sun and rain, the wind blew the dust cover, poor working environment. Electronic equipment being wet or damp will cause a short circuit and even fire if more serious. While the caused fault and fire will reduce its lifespan. So the combination part of LED sign units and LED sign body as well as led sign cabinets must be strictly waterproof and leakage proof. LED Sign body and cabinets should have good drainage facilities design so that once the occurrence of water could be smoothly discharge.

Outdoor LED sign display screen may be affected by the strong electric magnetic attacks caused by lightning. So better install lightning protection apparatus in the LED sign display screen or on the building after purchase when led sign display screen installed. What’s more important, please make sure the led sign body and the building to maintain a good grounding and guarantee grounding resistance less than 3 ohm so that high current lightning induced timely discharge.

3.    Heat Resistance

Outdoor environment temperature changes greatly. When LED Sign Display Screen work itself will produce some heat. While if the ambient temperature is too high and the led sign display screen heat dissipation bad, the integrated circuit of LED sign may not work properly, even burned, so that the LED sign display system can’t work normally.

So what we do to make it with strong heat resistance?

1.    Ventilation cooling equipment keep the internal temperature of the screen body is between -10 to 40℃.

2.    Axial flow fan behind LED sign cabinets make sure the heat discharge timely;

3.    Industrial grade integrated circuit chip used make sure operating temperature between -40 to 80℃, prevent winter temperature too low to start the led sign display screen.