烛光 

Pinyin: zhú guāng 
Meaning：Candlelight
Sentence:  一阵风吹得烛光摇曳。A gust of wind made the candles flare.

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烛： 

Pinyin: zhú
Meaning: Candle
Radical: 火
Stokes: 10
Traditional: 燭
Common words/Phrase:
烛光 [zhú guāng] 【candlelight】 
烛台 [zhú tái] 【pricket】
烛花 [zhú huā] 【snuff】
烛煤 [zhú méi] 【cannel】
蜡烛 [là zhú] 【candle】

光： 

Pinyin: guāng
Meaning: Light; ray; bright
Radical: 儿
Stokes: 6
Traditional: 光
Common words/Phrase:
光电[guāng diàn] 【opto-electrical】 
光明[guāng míng] 【promising】
光学[guāng xué] 【optics】
光纤[guāng xiān] 【optical fiber】
光华[guāng huá] 【brilliance】