“bright / clear” in Japanese is 明, read mei, myou, a (めい, みょう, あ, あか). It is a Grade 2 Kyōiku kanji, taught in year 2 of Japanese elementary school, and appears in words such as 明日 (tomorrow).
What does 明 mean?
部屋が明るい。
Same sound, different character — the classic trap. Compare them side by side: