Number + 盏 + Noun
盏 (zhǎn) is a measure word used specifically to count lamps, lanterns, and small cups. It is the standard classifier for lighting fixtures and is frequently seen in literary and everyday descriptions of lights.
桌上摆着一盏小台灯,光线很柔和。
zhuō shàng bǎi zhe yī zhǎn xiǎo táidēng, guāngxiàn hěn róuhé.
A small desk lamp sits on the table, giving off soft light.
街边挂了好几盏红灯笼。
jiēbiān guà le hǎo jǐ zhǎn hóng dēnglóng.
Several red lanterns are hung along the street.
这盏灯用了十年了还没坏。
zhè zhǎn dēng yòng le shí nián le hái méi huài.
This lamp has been used for ten years and still hasn't broken.