Why don’t LED Bulb work on boat
2021年1月4日 日常How to Choose a Quality Marine Grade LED Bulb Replacement
The confusion takes root in the fact that all low voltage LED lighting products are not made equal. There is a multitude of sources for LED lights on the market, very little honest technical information is available on them and the price range is extremely wide.
At first, it would appear to us that LEDs were made with a boat in mind. They have a great life expectancy, don’t mind vibrations, give off much less heat than their incandescent or halogen counterparts and use a lot less energy - about a tenth of the wattage of a halogen - for a similar output. So, where is the problem you ask? Why don’t they work on my boat?
Historically, it was simple. The color output was BAD! Nobody liked the dull, low-output blue color of the early LED’s. Well, that has changed and LEDs now have a similar light output and color to that of low-wattage halogens we find on our boats.
The problem these days is different. The marine environment with its various power sources is very hostile towards electronic components, especially LED lights. Voltage variations that we witness on our yachts are the greatest enemy of LEDs. Being VERY SENSITIVE TO VOLTAGE VARIATIONS, MOST LEDs found on the market are NOT SUITABLE for use on our boats.
All LED’s are semiconductor diodes. They create their light at the junction of their positive and negative sides. When power is applied to an LED, the electrons jump from one side to the other releasing light in the form of photons in the process. Different types of semiconductors produce different wavelengths and consequently produce different light colors. The warm white lights that we prefer in yachts is produced by Indium Gallium Nitride (InGaN). Add other materials, like phosphors and you get a pleasing incandescent light color.
Now, what happens when we apply voltage to this semiconductor is what we really need to look at. Apply the right voltage - in our application 12V - and the right amount of current will travel through the semiconductor and we get a beautiful, energy-efficient, bright light that will glow for thousands of hours. But, we need the right voltage, precisely 12V.
You and I know for a fact that boats do not offer lab quality power! Start the engine, the generator set or connect to shore power and your environment has suddenly become hostile to your LEDs.
Why is that? Simple! When the generator, alternator or inverter kicks in, we often see the voltage reaching upwards of 15V or higher. The higher the voltage, the more current goes through the semiconductor, the more electrons jump from one side to the other, the more light is generated and MORE HEAT is generated. And, guess what is the enemy number one of LEDs? HEAT! We need to either control the heat produced or dissipate it. Apply a lot of current to an LED and you will get a very bright light for a very short period of time. Apply to little and you get a dim, useless light.
The confusion takes root in the fact that all low voltage LED lighting products are not made equal. There is a multitude of sources for LED lights on the market, very little honest technical information is available on them and the price range is extremely wide.
At first, it would appear to us that LEDs were made with a boat in mind. They have a great life expectancy, don’t mind vibrations, give off much less heat than their incandescent or halogen counterparts and use a lot less energy - about a tenth of the wattage of a halogen - for a similar output. So, where is the problem you ask? Why don’t they work on my boat?
Historically, it was simple. The color output was BAD! Nobody liked the dull, low-output blue color of the early LED’s. Well, that has changed and LEDs now have a similar light output and color to that of low-wattage halogens we find on our boats.
The problem these days is different. The marine environment with its various power sources is very hostile towards electronic components, especially LED lights. Voltage variations that we witness on our yachts are the greatest enemy of LEDs. Being VERY SENSITIVE TO VOLTAGE VARIATIONS, MOST LEDs found on the market are NOT SUITABLE for use on our boats.
All LED’s are semiconductor diodes. They create their light at the junction of their positive and negative sides. When power is applied to an LED, the electrons jump from one side to the other releasing light in the form of photons in the process. Different types of semiconductors produce different wavelengths and consequently produce different light colors. The warm white lights that we prefer in yachts is produced by Indium Gallium Nitride (InGaN). Add other materials, like phosphors and you get a pleasing incandescent light color.
Now, what happens when we apply voltage to this semiconductor is what we really need to look at. Apply the right voltage - in our application 12V - and the right amount of current will travel through the semiconductor and we get a beautiful, energy-efficient, bright light that will glow for thousands of hours. But, we need the right voltage, precisely 12V.
You and I know for a fact that boats do not offer lab quality power! Start the engine, the generator set or connect to shore power and your environment has suddenly become hostile to your LEDs.
Why is that? Simple! When the generator, alternator or inverter kicks in, we often see the voltage reaching upwards of 15V or higher. The higher the voltage, the more current goes through the semiconductor, the more electrons jump from one side to the other, the more light is generated and MORE HEAT is generated. And, guess what is the enemy number one of LEDs? HEAT! We need to either control the heat produced or dissipate it. Apply a lot of current to an LED and you will get a very bright light for a very short period of time. Apply to little and you get a dim, useless light.
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