LED: No other type of lighting offers as much potential to save energy and enhance the quality of building environments

“Our LED lighting systems are green, cost-effective and safe. But don’t take our word for it,” says SuperGreen Solutions of Boise, Idaho. The U.S. Department of Energy said that no other type of lighting “offers as much potential to save energy and enhance the quality of our building environments.”

HOW DO LEDS WORK?

Unlike traditional bulbs, LEDs (light-emitting diodes) don’t contain a filament that will burn out. They also remain fairly cool, which is excellent for either commercial or residential AC bills. LEDs are illuminated by the movement of electrons through a semiconductor. When the electrons move, they release visible light.

What makes LEDs better?
One of the biggest differences between LEDs and halogen light bulbs is their lifespan. LEDs can last up to 80,000 hours. Halogen light bulbs only last between 2,000 and 6,000 hours. Halogen bulbs also suffer what is termed as ‘catastrophic; failure, which essentially means they work until they don’t! And when the die they pop! LEDs on the other hand very slowly loose their light output, so even at 80,000 hours there will still be another 80,000 hours of light but just at a lower level. LED life spans are usually referenced as the L70% life. As the human eye can only detect light loss above 30%, LEDs are rated to this level; there is still plenty of light left but at ever diminishing level.

How they work and their efficiency
Electricity is used to heat up tungsten filaments in halogen light bulbs. When these tungsten filaments are heated up, light is produced. LED lights produce light by running an arc of electrical current between two electrodes. The method of generating light from an LED fitting is much more efficient than a Halogen bulb, only around 10% of the energy that goes in to a Halogen bulb is actually converted to light, the rest is given off as heat, the efficiencies with LED light fittings can be as high as 80%.

Stop having to change bulbs
With LED lighting there is no need to constantly change bulbs. Most HID bulbs have a lifespan of only 5,000 hours and need to be changed regularly.

Low power consumption and no start up current
OceanLED underwater lights have a very low power consumption and do not have huge start up currents, some ‘bulb’ versions of underwater lights can have a start up current of 18 amps meaning that the lights must be turned on slowly and in sections, in some cases taking up to 25 minutes to have all the lights turned on. LED lights can all come on at the same time and don’t overload the generators.

SOURCE: OceanLed

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