However, instead of using metal prongs, which often break or become stripped, induction bulbs are excited through a powerful electromagnet positioned outside the bulb. This setup also eliminates the problem of leaky bulbs common with fluorescents , where outside gasses seep inside and disrupt the balance of inert gasses. When looking over the chart above, you can see that induction and LED lights are fairly comparable in many areas, but as in all lighting decisions you first need to consider the application.
First determine whether your specific application would benefit more from widespread or focused light. LEDs can do both but are excellent are producing one directional light. Another factor to consider is how the lumens will depreciate differently over time. Also, their UV light may fade or damage certain products.
Induction Lighting , lighting. How do each of these lights compare in the color spectrum they give off? I am comparing for the purposes of growing plants. Thanks for the question. In regards to the color spectrum and how viable these options are for growing applications, check out our article on how LED grow lights are much more optimized than HID.
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Induction lamps are fully enclosed, with inductors around the outside that generate a magnetic field. The magnetic field transfers power to the inside of the lamp, which has gas in it. The power excites the gas, producing UV radiation that converts to visible light by a phosphor coating on the bulb. There are no electrodes or filaments used in the process, which means induction lamps last longer than traditional fluorescent or metal halide lamps because the components do not decay as rapidly or burn out.
Induction lighting has been hailed as the best kept secret in the lighting industry. It has many benefits, including a long life span, efficient operation, and control features to save more energy. Induction lamps last up to , hours , which translates to 11 years if turned on 24 hours a day.
Standard lighting technology does not last nearly as long, and thus requires much more maintenance and related expenses in order to frequently replace bulbs. Induction technology uses electricity more efficiently than metal halide; however it is not as efficient as T5 fluorescent technology. Certain control features, such as dimming ability, can increase energy savings. Additional benefits of induction include:. There are two types of induction lamps: those with external inductors or electrodes, and those with internal electrodes.
These are mounted on opposite sides of the lamp equidistant from each other. These have internal inductors or electrodes that enable a smaller and more compact bulb size, more typically shaped like a regular metal halide, high pressure sodium, incandescent, or mercury vapor type of bulb. Our Kumho W induction bulbs , for instance, are almost exactly the same size and shape as a regular W metal halide lamp with a standard envelope. Here are some of the real products that we use on our commercial projects.
Wattages range from as little as 40W all the way to W lamps and ballasts. Induction Lighting is suitable for virtually any indoor or outdoor commercial lighting application.
Induction lighting is less common for residential applications. Induction lighting is very popular in indoor high bay applications used in warehouses, plants, factories, retail areas, and gyms. In exterior applications, induction fixtures are used to replace just about any type of old or inefficient commerical fixtures, including wall packs, parking lot lights, street lights, post tops, acorns, bollards, wall mount fixtures, garage canopies, and other surface mount fixtures.
It has also been used for decades in most commercial exterior applications. The initial benefit of HID was the very high lumen per watt output, but that comes at a cost. HID lamps last only about years and have a very rapid lumen depreciation over that time period. This means to keep light levels up you must change out the lamps constantly. Other shortcomings of HID include:. In most applications with today's induction technology and costs to do an induction lighting retrofit , it makes sense to replace metal halide lamps.
A good starting point is to divide the HID wattage by 2, or take about half the current wattage the HID is using, and that is what you need for an induction lamp to maintain equal light levels. Induction lighting has quite a number of advantages, which is what makes it such a popular energy-efficient lighting choice in Europe and other parts of the world.
Induction lights don't run on electrodes, which can fail in traditional types of fluorescent lamps. Additionally, unlike fluorescent bulbs, induction bulbs come in a sealed tube. Therefore, there isn't as great a risk of the bulb breaking and releasing mercury into the air.
Induction lights are also incredibly energy efficient. In fact, they can produce as many as 80 lumens per watt and with no flickering. And unlike other types of bulbs, the induction bulb can provide light for both large and small areas depending on the type of bulb you use.
However, it should be noted that induction lighting does have a share of disadvantages. For instance, induction bulbs are often bulky and, because of their inductive qualities, they can cause problematic interference with radio waves. It's for these reasons that induction lighting is often limited to the use of warehouses and roadways.
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