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Philosophy

Advantages of Exalight technology, are low heat development above ambient temperature compared with others types of techs for the same consumption.

It is well known that light sources are relatively inefficient, because very small percent of consumed energy is converted to light, other amount of energy is converted into heat.

Cooler operation philosophy

We can explain the key feature of our product with two single bars, one representing traditional light sources and one representing Exalight

The yellow colour shows the energy converted into light, and the red colour shows the energy converted into heat.

If we prevent the light source from developing any heat, and stop it at maximum 10 degrees above ambient temperature, the ratio between light and heat will look likeshown in the Exalight bar.

For the same amount of consumed energy, the light source could produce more light and less heat.

To get this result we use a few techniques:
⦁ We use more LEDs for the same current, which provide less current through single LEDs.
⦁ We have special designed LEDs to fit our needs.
⦁ We have developed proprietary electronics for heat control

table-image

(Upper rectangle shows average light source

CategoryTypesOverall
luminous efficacy (lm/W)		Overall luminous efficiency[note 1]
Combustion
  • candle
  • gas mantle
  • 100–200 W tungsten incandescent (230 V)
  • 100–200–500 W tungsten glass halogen (230 V)
  • 0.3[note 6]
  • 1–2[14]
  • 13.8[15]–15.2[16]
  • 16.7[17]–17.6[16]–19.8[16]
  • 0.04%
  • 0.15–0.3%
  • 2–2.2%
  • 2.4–2.6–2.9%
    • Incandescent
  • 5–40–100 W tungsten incandescent (120 V)
  • 2.6 W tungsten glass halogen (5.2 V)
  • tungsten quartz halogen (12–24 V)
  • photographic and projectionlamps
  • white LED (raw, without power supply)
  • 4.1 W LED screw base lamp (120 V)
  • 5.4 W LED screw base lamp (100 V 50/60 Hz)
  • 5–12.6[18]–17.5[18]
  • 19.2[19]
  • 24
  • 35[20]
  • 4.5–150 [21][22][23][24]
  • 58.5–82.9[25]
  • 101.9[26]
  • 0.7–1.8–2.6%
  • 2.8%
  • 3.5%
  • 5.1%
  • 0.66–22%
  • 8.6–12%
  • 14.9%
    • Light-emitting diode
  • 6.9 W LED screw base lamp (120 V)
  • 7 W LED PAR20 (120 V)
  • 7 W LED PAR30 (110-230 V)
  • 8.7 W LED screw base lamp (120 V)
  • Theoretical limit for a white LED with phosphorescence color mixing
  • 55.1–81.9[25]
  • 28.6[27]
  • 60[28]
  • 69–93.1[25][29]
  • 260–300[30]
  • 8.1–12%
  • 4.2%
  • 8.8%
  • 10.1–13.6%
  • 38.1–43.9%
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