( ( According ( to ( ( the information ) ( listed ( at ( ( the ( US ( Environmental ( Protection ( Agency 's ) ) ) ) ) website ) ) ) ) ) ) ( , ( ( incandescent bulbs ) ( only ( ( convert ( ( ( ( about 10 ) % ) ( of ( ( the ( electrical ( energy input ) ) ) ( into ( ( ( ( visible light ) energy ) and ) ( ( about 90 ) % ) ) ) ) ) ) ( is ( ( converted ( to ( infrared radiation ) ) ) ( -LRB- ( or ( ( thermal radiation ) -RRB- ) ) ) ) ) ) ) . ) ) ) ) )
(ROOT (S (PP (VBG According) (PP (TO to) (NP (NP (DT the) (NN information)) (VP (VBN listed) (PP (IN at) (NP (NP (DT the) (NNP US) (NNP Environmental) (NNP Protection) (NNP Agency) (POS 's)) (NN website))))))) (, ,) (NP (NN incandescent) (NNS bulbs)) (ADVP (RB only)) (VP (VBP convert) (SBAR (S (NP (NP (QP (RB about) (CD 10)) (NN %)) (PP (IN of) (NP (NP (DT the) (JJ electrical) (NN energy) (NN input)) (PP (IN into) (NP (NP (ADJP (JJ visible) (JJ light)) (NN energy)) (CC and) (NP (QP (RB about) (CD 90)) (NN %))))))) (VP (VBZ is) (VP (VBN converted) (PP (TO to) (NP (JJ infrared) (NN radiation))) (PRN (-LRB- -LRB-) (CC or) (VP (VBG thermal) (NP (NN radiation))) (-RRB- -RRB-))))))) (. .)))
According to the information listed at the US Environmental Protection Agency's website , incandescent bulbs only convert about 10% of the electrical energy input into visible light energy and about 90% is converted to infrared radiation (or thermal radiation).
(ROOT (S (PP (IN In) (NP (NP (DT the) (NN case)) (PP (IN of) (NP (DT a) (JJ light) (NN bulb))))) (, ,) (NP (NN electricity)) (VP (VBZ is) (VP (VBN converted) (PP (TO to) (NP (JJ light) (CC and) (JJ thermal) (NN energy))))) (. .)))