Toshiba to Introduce Light Bulbs With 12,000-Hour Life

Toshiba Lighting & Technology Corp developed Neoball-Z Real Pride, a bulb shaped fluorescent lamp with a rated life extended to 12,000 hours.

The latest lamp has a rated life that is 1.2 times longer than that of the existing product (10,000 hours). Compared with an incandescent bulb, the rated life is approximately 12 times. The new lamp comes in three colors, warm white, day white and daylight. All types are a three band fluorescent lamp with high color rendering properties.

To extend the product life, the company increased the diameter of the electrode coils so that the amount of emitter applied to them may be increased. The company reportedly optimized the coils to prevent the dispersion of emitter, which occurs when the lamp is turned on. In order to contain larger coils, the diameter of fluorescent tube is increased from 8 to 9mm. This also stabilizes the voltage on lighting.

The luminous efficiency is usually deteriorated when the fluorescent tube diameter is increased. To compensate for the deterioration, the company increased the length of spiral fluorescent tube (discharge length) from 300 to 400mm. In this way, the new lamp ensures the luminous efficiency equivalent to that of the existing product.

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Toshiba to Introduce Light Bulbs With 12,000-Hour Life (Tech-On!)