Among the list of challenges is the development of far more productive eco-friendly LEDs. The theoretical maximum for eco-friendly LEDs is 683 lumens for each watt but as of 2010 few green LEDs exceed even a hundred lumens for each watt. The blue and pink LEDs solution their theoretical restrictions.[citation https://linkingbookmark.com/story13422636/5-essential-elements-for-sic-schottky-barrier-diodes