Alternative bulb design unlikely to hit $3 target by 2017

Startup 2D-Light recently posted its light-emitting diode (LED)-based 60 W bulb retrofit design on Indiegogo, a crowdsourcing website. The bulb is primarily a single printed circuit board (PCB) that has two chip-on-board (COB) LEDs on each side. Each LED is fitted with a lens to distribute the li...

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