18" LED light 18"是指十八英寸吗?

18 LED light 18是指十八英寸吗? par led light是什么灯? LED SPOT LIGHT 还有 led tube,led bulb,led down light ,led wall washer light,led ceiling light.都是什意思,（常规中文） 英语翻译LED Ceiling light seriesLED light belt seriesLED display series solar light 和LED light 有什么区别? LED Mini-high day light 是什么灯 LED Mini-high day light 是什么灯 什么是LED?LED Light Emitting Diode（发光二极管）的缩写 LED light bar 是什么?LED light bar with sensor 中的sensor 是什么? DRL（LED Daytime running light）汽车DRL（LED Daytime running light)产品那里有卖? light up your life with led spotlight!此句有没语病? How much is 1 LED lamp high intensity light? LED light LED light bar分多少种?从哪些方面可以区分是顶部发光还是侧面发光的? led日光灯18W耗电量 LED日光灯18W多少钱? Energy Saving Light Bulbs 和led light bulb 有什么不同 Light light