Revision as of 17:45, 25 July 2015 edit Rwendland (talk \| contribs) Extended confirmed users, Pending changes reviewers 30,996 edits m rv - cite is for a Cree bulb ← Previous edit		Revision as of 17:49, 25 July 2015 edit undo Rwendland (talk \| contribs) Extended confirmed users, Pending changes reviewers 30,996 edits rm Dropped ceiling photo which is not specific to LED bulbs, helps photo crunch in article Next edit →
Line 16: ==Technology overview== {{unreferenced section\|date=December 2012}} ~~[[File:LED T-bar ceiling light.JPG\|thumb\|upright\|[[Dropped ceiling]] with [[LED]] lamps]]~~ General-purpose lighting needs white light. LEDs emit light in a very narrow band of wavelengths, emitting light of a color characteristic of the energy [[bandgap]] of the [[semiconductor]] material used to make the LED. To emit white light from LEDs requires either mixing light from red, green, and blue LEDs, or using a [[phosphor]] to convert some of the light to other colors.

LED lamp: Difference between revisions