Unit of Light Intensity, Sounds Like a Waxy Object

Puzzle 14 of Cold Places Easy Pack

Question is: Unit of Light Intensity, Sounds Like a Waxy Object

and the answer is: CANDELA

Word Meaning:

CANDELA — In the International System of Units, the base unit of luminous intensity; the luminous intensity, in a given direction, of a source that emits monochromatic radiation of frequency 540 × 10¹² hertz and that has a radiant intensity in that direction of 1/683 watt per steradian. Symbol: cd

Definitions from Wiktionary.