冷光源，单色性好，发光效率高。

Cool light, Good monochromaticity. High luminous efficacy.

youdao

能源效率远远超越普通灯，因为它们是基于发光二极管。

They're also far more energy efficient than regular lights as they use LEDs.

youdao

能源效率远远超越普通灯，因为它们是基于发光二极管。

They're also far more energy efficient than regular lights as they use LEDs.

youdao