As LEDs became more advanced, and more LED emitters were placed upon a single semiconductor device, the problem of heat dissipation became neonskyltar more accute. The requirement for doing a good thermal analysis of the printed circuit board holding the LED chips became apparent to those who understood what they were doing. Others tried to use the old technology with the new chips, and reklam their products consistently failed.
The heat generated by an LED device strongly depends upon the input voltage to the device. If an LED circuit is designed to handle the fasadskylt heat load and operate only in a 12.8-volt environment, it will not operate well in a 14.7-volt environment. It will deteriorate and die much sooner. It's lifetime will be only a few thousand hours, rather than 100,000 hours. And if the over-voltage ranges reklam skylt up to 18 or 24 volts, the LED device may die immediately.
A fully charged type-27 lead-acid battery typically provides a maximum of 12.8-volts. Some people assume that is the operating voltage ljusskyltar of an RV. But if you connect to the Shore Power Pedestal and let your AC/DC converter charge your battery, the line voltage will rise to 13.8-volts. If you have a solar system, the controller may raise the line voltage to 14.7-volts. Battery ljusskyltar led equalization runs typically increase the line voltage to 16.6-volts for two hours or more.
Most of the early designers producing LEDs for the RV environment assumed a 12.8-volt environment, and their products failed at a skylt & dekor remarkable rate in today's RVs and boats. Some learned that if they did not provide some kind of voltage regulation or power regulation on their LED circuits, product failure rates went out of sight.
How the designer protects the LEDs becomes important when you are concerned with overall power efficiency. If the LED circuit has a simple voltage limiter, it "throws" away any excess led skylt utomhus voltage, reducing the efficiency of your LED in using the available power. On the other hand, if the LED circuit has a power regulator, it converts excess voltage into usable power by taking less current from the main line. Ask your LED supplier how they are protecting företags skyltar their LEDs and what is the cost for such protection. Many of the LED sales people do not understand the basics of the problems with heat and voltage. Will they give you a decent warranty for all conditions, like the full 100,000 hours - about 11 years?
LEDs are a big investment. They are expensive, but if they are constructed properly and used properly, you will have many years of great service, and they will pay back their original cost skyltar led many times over. But you must be sure the LEDs you use have sufficient protection against excess heat and against voltage vagaries that can destroy them sooner than they should die.
