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60,000 hours of long lifespan. You will forget about lamp replacement. The power consumption is about one-third compared to mercury lamps, and instant lighting and instant re-lighting are possible. Compared to LED, the 300 lux of the electrode-less lamp appears brighter than the 500 lux of LED. Why does 300 lux appear brighter than 500 lux? Brightness is expressed in lux, but the perceived brightness by the human eye has a parameter called "pupil lumen," and the brightness multiplied by this parameter is the actual brightness seen by the eye. When using a 40W fluorescent lamp as a reference, the pupil lumen for LED and mercury lamps is 0.8, while for the electrode-less lamp, it is 1.92. In other words, when you multiply the 500 lux of LED by the pupil lumen of 0.8, you get 400 lux, and when you multiply the 300 lux of the electrode-less lamp by the pupil lumen of 1.92, you get 576 lux. Therefore, the perceived brightness is higher for the electrode-less lamp. In practice, when a client required an illuminance of 500 lux, the technical department of a publicly listed company accepted this theory for a design of 300 lux. Since there are no filaments or discharge electrodes, it is resistant to vibrations and does not produce defects like LED in press factories.

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