If you are still complaining about that your LED outdoor signsare not bright enough under sunshine, you should know that there are things that you are able to actually do to improve it or next time when you decide to purchase another one, you are fully aware of what to consider to yourself a brighter show off.
There are basically two stages where the brightness can be improved. The number one one is during the development of LEDs and the latter is when you surely have your signs.
During the production process or so called encapsulation process, the luminance can be enhanced by improving the luminescence efficiency of the LED chip's active layer or changing the chips' shape or size to do this a better luminous effective. If you haven't bought your sign, it's always a good idea to consult the supplier about the chips and check out the luminance test report to produce sure the chips which will use are bright enough for your for sale sign.
However, there are cash cases that you already got your LED outdoor displays but don't think they are not as bright as you expected when you are testing them in the profession. Actually you can try 3 methods to enhance of which.
1. Change the current that is running via your LED display. Generally speaking, LEDs allow a 20 milliampere working current perpetually. But only red LED has saturation phenomenon, other LEDs' (Blue and Green) luminance is in ratio while current amount that runs through them. A higher but safe current will make your sign much superior.
2. Adjust the brightness from the controlling software program. Yes, it is adjustable. Normally if you find that the brightness of your sign seems to be under what the data you got from your supplier, indicates probably they decreased it before shipping it you to save more energy. Your supplier should be that will teach you how to make it worse it brighter step by step or their engineer can just do it for you. As the issue of fact, adding another multifunction card is an alarmingly good idea to allow you do it automatically in addition to a lot of controlling systems makers are producing it too. It will adjust the luminance of your display based on the brightness of the environment as well as some other additional functions such as auto switch, temperature probe, etc.