How warm the LED temperature sign gets while it works will depend on the LED's working ambient temperature. Normally it is +50 -20. In other words, if the ambient temperature is too high, the LED time displays will not die, but they will reduce their lifespan.
LED Time And Temperature Signs are a great way to advertise. Because they are bright, colorful, and have excellent clarity. Especially at night, that is why a lot of advertisers use LED time displays. It is most important it goes run with your business and make your company famous.