Advantages of LED over traditional light sources are numerous:
- 50 – 90% less energy is consumed, cutting overhead immediately. The improved quality and quantity of light produced per lamp often provides opportunity for de-lamping, decreasing energy use even more.
- HVAC savings, because LED produces far less heat. We can calculate the savings for you
- LED lights don’t use ballast which saves more energy. This also eliminates the replacement costs, and maintenance time spent on lifts and ladders. LED is maintenance free for years.
- Instant On/Off capability with no harm to your LED light, allowing the use of motion sensors to reduce energy use even more. Florescent, halogen, and metal halide fail quickly turning on/off all the time.
- Better light quality, which improves productivity, safety, and sales. Productivity is increased because acuity at work stations helps prevent errors. Also, better lighting quality improves the health of humans, so employees will work more efficiently, and use fewer sick days. See the article on this web site by the Rocky Mountain Institute, Green Buildings The Bottom Line. A quote from that article, “An increase of 1 percent in productivity by employees can provide savings to a company that exceeds its entire energy bill”. Increased productivity, or sales at your facility, will more than pay for an LED retrofit. Safety for employees, and customers, is always enhanced with better light.
- Long life of 50,000+ hours, which saves replacement costs, and maintenance time spent replacing bulbs. Compare with Halogen = 2000-3000 hrs CFL = 10,000 hrs
- Seesmart LED lights are made to be a retrofit solution, using your existing fixtures. From tube lights to street lights the costs of your new LED lights will be lower. For new construction, or if you want to change the look in your facility we do have fixtures that look fantastic.
- The Health & Environmental Benefits of LED are many compared to conventional lights. LED lights emit no UV, contain no mercury, no lead, and the entire light is recyclable. Also, the switching cycle of LED is >40,000, meaning there is none of the flickering, like florescent lamps, that causes headaches.
- Using Seesmart LED lights will generate tax Savings via EPAct 2005. You will be able to collect $.60 per square foot in your facility after we install LED lights and take light measurements. www.EnergyTaxSavers.com is a great resource.
- LED light is directional, and this means light that is produced will be useful. Traditional sources throw light in all directions, but most of it is not useful light. Light produced by LED goes where you need it, and is useful.
- Insurance Savings are possible because your employees will not be on lifts, ladders, or messing with electricity. Two of the most common injuries at work are electrocution and falls. Exposure to these risks are greatly reduced for years by using Seesmart LED. After installation we’ll request a safety audit from your insurance company and ask for lower rates to acknowledge the improved safety.
How do the traditional lights sources work:
Halogen or tungsten based light sources produce light when an electric current heats a filament in the lamp. This is very inefficient because most of the energy is used to produce heat, not light. Due to the heat these lamps produce they have a very short life. These are all easily replaced by our LED lamps, and with very short ROI timelines.
Fluorescent lamps contain mercury atoms, and when these atoms are excited by electricity they emit ultra violet radiation, and that radiation hits a phosphor coating on the inside of the tube which produces light. This is more efficient than halogen or incandescent, but the hazardous material, failure when turned on/off constantly, slow starting time, short life, and low efficiency compared to LED makes it no contest when choosing the best lamp.
HID (high intensity discharge) lamps consist of the MH (metal halide), HPS (high pressure sodium), and MV (mercury vapor). The basic construction of these lamps is the same. There are two envelopes – an inner envelope (arc tube) which contains the electric arc, and the outer envelope (the bulb) which shields the inner arc tube. The inner arc tube contains the electrodes, various metal halides, mercury, and an inert gas (usually argon). The typical halides (sodium, thallium, indium, scandium and dysprosium) are also toxic, but not at the level of mercury. As pressure and temperature increase in the arc tube, the materials within the arc tube vaporize, and emit light, and UV (ultraviolet radiation). There is often a long warm up time before light is created. MH light is more white, while HPS light is very yellow.
All of the older light sources emit light in all directions, so much of the light will not be useful. That is why you see reflectors attempting to make more of the light produced, useful.
How do LEDs work:
LEDs (Light Emitting Diodes) are a solid state light, an electronic part, known as a semiconductor diode. A diode, or chip, is layers of semiconducting materials. Some of the layers have a lack of electrons creating a positive charge (P-type), and some layers have excess electrons creating a negative charge (N-type). When an electric current is applied to a diode, a layer of positive electrons meets a negative layer at what is called the PN junction. Near the PN junction the negative layer sheds extra electrons (that were gathered from the electrical current), to the positive layer, and thus drops to a lower energy level. This release of energy is in the form of a light photon, the basic unit of visible light. This process of creating light is known as Electroluminescence.
The layers in a chip are made of the same rare and semi-precious materials used to manufacture cell phones, and computers, and this is the most expensive part of a LED light. The energy of the photons corresponds to the color of light emitted. Blue and purple light results from the greatest energy emission whereas yellow and red light is the lowest energy emission. The different semiconductor materials emit different colors of light, so engineers can alter the color of light produced, by altering the materials used.
To be useful, a LED chip or diode must be part of a lighting system, an electronic package. Without a package made of quality parts, and engineered coherently, the best diode in the world is worthless. The components of the LED light package are:
- Chips are the central component of the package that creates light. There are not many manufacturers of diodes/chips, and our engineers are always evaluating which chip will be best for each light or application. This is a matter of determining capability, durability, and price. Some of our chip manufacturers are Lumiled, Osram, Bridgelux, CREE, Epistar, Lemnis, Samsung, Everlight, Sharp, Nichia, Philips Lumileds, 3014SMD, Seoul Semiconductor, and Lextar.
- The Driver is crucial to the reliability and performance of the LED light. This electrical device regulates the power to a chip or a string of chips. It’s important that the driver responds to the ever-changing needs of the chips as temperature changes. Without a quality driver, or proper engineering the diodes may be driven too hard and become hot, unstable, or cause a good chip to perform below average.
- Heat Sink is used to transfer heat away from the chip. Chips fail quickly when heat is not wicked away efficiently. Aluminum is often the best material to use. Less expensive materials are often used on low quality LED lights, and they do not wick the heat away as quickly, and also become heat saturated much quicker. This keeps more heat at, and around the diode, causing even the best chip in the world to fail quickly. On the scale we’re talking about, failure at 30,000 or 40,000 hours is too soon. Aluminum may add to the cost of a LED lamp, but it’s correct engineering for a quality lamp.
- Electrodes and Bond Wire transfer energy from the electrical system to the diodes or chip. Once again this is a piece of electronic gear that has to be built well with the best materials, or the best chip and heat sink will be a waste when this part of the package fails. Correct engineering to choose the best parts, and put them together in a coherent fashion, and then good manufacturing.
- Optics are often used to make the light emitted from the chip more useful. Proper engineering, and use of quality parts can help make a good light, great.
- Engineers with a depth of experience in this new cutting edge technology are hard to find. Seesmart, Relume, and Lumificient have gathered many of the best engineers in the business, and they have been creating the finest LED lighting since 2003, far longer than most. LED is revolutionizing the lighting industry but in order to take advantage of this technology one must combine a specific set of competencies and processes that are not common knowledge. As a result, the LED market is saturated by poor quality products. Our engineers get it done right, and the 1800 commercial grade products we have to offer are the proof.