energy-saving bulb
/ˈɛnədʒisˈeɪvɪŋ ˈbʌlb/
n
English · energy-saving bulb中文 · 节能灯泡Español · lámpara de ahorro de energíaFrançais · lampe à économie d’énergie
意味：Bulb whose electricity consumption is lower and its life longer than an incandescent bulb. incandescent lamp