Lattice Power has started mass production of its new generation GaN-based high powered LEDs on silicon substrates, which sets the backdrop for a sharp reduction in the prices of energy-efficient LED light bulbs worldwide. Lattice Power claims to be the first and only company in volume production of GaN-on-Silicon LED chips, with products that are comparable to high-end chips that rely on conventional sapphire substrates. Operating at a current of 350mA, the 45 mm product is capable of producing 130 lumen cool white with an efficiency of 120 lumens for each watt cons...