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Plessey launches new range of LED filaments

MaGIC GaN-on-Silicon technology targets growing filament bulb market

Plessey has launched a range of LED filaments, manufactured with the company's MaGIC GaN-on-Silicon LEDs. The filaments are designed for the growing filament bulb market where these replacement lamps have far better performance, but still maintain the physical appearance of incandescent lamps.

The traditional tungsten incandescent light bulb has been phased out in favour of LED technology providing the most reliable and efficient lighting solutions. Plessey's Chip-On-Board LED filaments create the same amount of light, while consuming less energy and offering longer life and utilise its patented MaGIC GaN-on-Silicon technology.

The LED filaments are designed with terminations designed so that they can be handled and spot welded by existing high volume fully automated glass lamp manufacturing lines. Plessey has also incorporated a bespoke approach to controlling the current and Vf of the filaments when the filaments are driven in a bridge configuration.

Plessey's CTO, Keith Strickland, said: "We have taken our existing Chip-Scale-Packaging technology, also used for our dotLEDs, into a revised format for the filament. Not only do we have an improvement in terms of manufacturability with GaN-on-Silicon and enhanced the power control for filament resistors, but Plessey will also be incorporating other active and passive electronic components for Chip-On-Board and Chip-Scale-Packaging solutions in next generation of filaments.

"Thermal performance and customisation are key to our filament product portfolio, and Plessey remains committed to bring to market unique LED products through our integrated approach to solid state lighting applications."

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