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Stanley Electric to release deep ultraviolet LEDs with 10% wall-plug efficiency by 2026
Thursday, March 19, 2026 at 02:40 AM
Stanley Electric plans to launch deep ultraviolet (DUV) LEDs with a wavelength of 265nm by fiscal year 2026, targeting a wall-plug efficiency (WPE) of 10%. This development aims to triple the luminous efficiency compared to current performance levels, supporting industrial and sterilization applications.
Context
Japanese optoelectronics leader Stanley Electric has announced a significant technological leap in its deep-ultraviolet (UV-C) LED portfolio, targeting a 10% wall-plug efficiency (WPE) for its 265nm wavelength products by the end of fiscal year 2026. This milestone represents a nearly fivefold increase from previous generation efficiencies of 2.3%, achieved through proprietary crystal growth on Aluminum Nitride (AlN) substrates and advanced light extraction structures. The company plans to begin shipping samples of an intermediate 7.5% WPE version in March 2026, with mass production of the flagship 10% efficiency model slated for the second half of that fiscal year.
This development is critical for the global transition away from mercury-based lamps in water, air, and surface disinfection. By reaching the 10% efficiency threshold, Stanley Electric aims to make UV-C LEDs a viable replacement for traditional systems in industrial-scale water treatment and consumer purifiers. Beyond power efficiency, the new LEDs boast a significantly extended operating life of 25,000 hours, more than doubling the durability of existing solutions. This advancement positions the company to capture a larger share of the sustainable sterilization market as regulatory pressure on mercury use intensifies.
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