Induction lighting is now being recognized as a truly long life lamp with real world energy saving potentials higher than LED. It is 50% more efficient than CFL’s, and cuts energy usage of traditional lamps like mercury vapor and high pressure sodium by half or more. Its tested lifespan of over 30,000 hours makes it a reliable solution for hard-to-maintain areas. With a rated lifespan of 60,000 hours, it is also a very environmentally friendly solution that symbolizes reduction, recycle, and reuse.
While induction lamp technology has matured in the last few years, it is often overlooked or underutilized in lighting applications since none of the major manufacturers promote induction lamps in any significant way. LED lighting seems to get the most "buzz" in the market as LEDs are promoted as the best alternative to conventional lighting due to their longevity. Induction lamps have a lifespan of 80,000 to 100,000 hours (depending on type and model), which is essentially the same as LED lamp lifespan. The major difference between the technologies is in conversion efficiency (energy utilization) and costs. This is particulary significant where large area lumination is needed, for example, outdoor, warehouse, or gymansium settings.
Most presently available commercial LED lighting fixtures have conversion efficiencies in the 35 to 55 Lumens/Watt (L/W) range. LED elements with a conversion efficiency of 70 L/W are available, but still quite expensive. There are reports of LEDs with conversion efficiencies of up to 100 L/W operating in research labs, but they are not yet commercially available.
Induction lamps have a conversion efficiency ranging from 65 L/W in low wattage (8 ~ 20 W internal inductor types) to 82 L/W in the high wattage (250 ~ 400 W external inductor models) range. Ongoing research will see some small improvements in these numbers. When considering commercial/industrial lighting and using a 200 W fixture as an example, the induction lamp version will produce 16,000 Lumens while an LED version would only produce 11,000 Lumens (about 31% less light) with the same energy input.
Since the most powerful single element LEDs available at this time are in the 20 ~ 25W range, to make a 200W fixture, an array of LED elements must be used. This adds to the expense of the fixture since the cost of these more powerful LEDs is presently quite high and they require custom heat-sinks for thermal management. Since induction lamps use well established and mature glass molding and coating technology with electronic ballasts (similar to fluorescent lamp technology), manufacturing costs are lower and yields higher than LEDs at this time. Typically an induction lamps fixture will cost 50% to 75% less than a similar output LED based fixture. This cost gap will be erased over time as LED production ramps up since sold-state devices are more amenable to cost reduction through mass manufacturing techniques.
Well, we all know that Light Emitting Diodes are not considered for general lighting purposes because of its limited brightness and poor color rendering, but this is compensated by its high reliability and high color temperature. It is still a common mistake that many people make thinking that higher color temperature, say 6000k, means higher brightness.
LED however, does have the same theoretical lifespan of 100,000 plus hours as induction light, given that the integrated chip does not fail before the diode. Many LED manufacturers neglect to fit a decent high temperature IC or integrate some kind of heat dissipation device and their LEDs fail after only 10,000 hours. Induction light on the other hand, offers the same stability and lifespan as LEDs but is available in much higher wattages and brightness so that it can truly replace incandescent and discharge lamps as the next revolutionary lighting source.
The Advantages of Magnetic Induction Lamps:
Long lifespan due to the lack of electrodes - between 65,000 and 100,000 hours depending on the lamp model;
Very high energy conversion efficiency of between 62 and 82 Lumens/watt [higher wattage lamps are more energy efficient];
High power factor due to the low loss in high frequency electronic ballasts which are 98% efficient;
Minimal lumen depreciation (declining light output with age) compared to other lamp types as filament evaporation and depletion is absent;
"Instant-on" and hot re-strike, unlike most conventional lamps used in commercial/industrial lighting applications (Sodium vapors and Metal Halides);
Environmentally friendly as induction lamps use less energy, and generally use less mercury per hour of operation that conventional lighting due to their long lifespan. The mercury is in a solid form and can be easily recovered if the lamp is broken, or for recycling at end-of-life;
These benefits offer a considerable cost savings of around 50% in energy and maintenance costs for induction lamps compared to other types of lamps that they replace.