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What Is Induction Lighting

The Power of Induction Lighting

Magnetic Induction Lamps are among the newest efficient light sources commercially available. They offer great energy savings, high isotopic output, and high-color rendering index. With no filaments or electrodes to burn out, these unique lamps can last up to 100,000 hours, making them virtually maintenance free. They are like fluorescent lamps with electromagnets, which can either be inserted inside the lamp or wrapped around the glass envelope tube.

Induction Lighting

The way induction lighting works is as follows. An electric current is sent through wires wrapped in a coil around a ferrite inductor. The coil is wrapped around the inductor, which produces a strong magnetic field that excites the mercury atoms traveling through the glass tube. The mercury atoms emit a UV light, which is then converted up into a visible light by the phosphor coating on the inside of the lamp.

Pupil Lumens & Lumen Output

A lumen is a unit of measurement of the power of light perceived by the human eye. Both induction and metal halide lamps emit 85 lumens per watt. However, magnetic induction lamps generate more lumen output with lesser energy consumed. Typically a 120-watt induction light can produce a similar brightness to a 400-watt halide.

How is this possible? There are 2 types of receptors on the retina of the human eye: rods and cones. The rods operate on low light levels; the cones operate at high light levels. Recent research has discovered that the lumens alone may not be the best way to show how the human eye perceives the power of the light. The present use of lumen is based on the assumption that the cones in the eye are the main light perceivers and the rods play a very small role.

The recent research shows that the human eye relies more than previously believed on its rods. The light that stimulates the rods in the eye is known as the pupil lumen. By designing lights to stimulate the rods and cones it is entirely possible to use far less wattage to illuminate a space.


Induction lamps produce a more blue light, which is higher on the color-rendering index of the visible light spectrum, to which the eye is more receptive at night. In contrast, the HID lamp is stronger in the yellow range where the ability to define details is lost. A high-color rendering index allows colors to be accurately reflected in a more natural light. It makes color look brighter, more vibrant, and more attractive it tends to provide a more consistently perceived color.

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At 40% of service life, HID light output experience severe decline in efficiency. A 400-watt metal halide lamp, which onset emits 27,000 lumens after 40% of life, will only emit 16,200 lumens. However, tests have revealed that a 120-watt induction lamp retains 95% of its output after 20,000 hours and 90% after 60,000 hours.

Induction lighting produces better light at lower temperatures and reduces costs with 5 times the rated lamp life. Contact us now in, for this energy-saving solution.