燭しょっ光こう

noun

candlepower

Technical term for luminous intensity, now largely replaced by the SI unit candela (カンデラ). Still encountered in older texts or specific engineering contexts.

• この電でん球きゅうの明あかるさは約やく50燭しょっ光こうです。

  The brightness of this light bulb is about 50 candlepower.