To change the light source is costly because you have to change the whole fixture.
出自-2015年12月閱讀原文
The whole fixture must be replaced—light source and luminaire—and this is never an inexpensive proposition.
出自-2015年12月閱讀原文
The lamp, the fixture, and the room, all three must work in concert for the true benefits of end users.
出自-2015年12月閱讀原文
It is easy to change a light bulb, sure, but it is harder to change the bulb and its fixture.
出自-2015年12月閱讀原文
If the CFL should be used for lighting a particular space, or an object within that space, the fixture must be designed to work with that lamp, and that fixture with the room.
出自-2015年12月閱讀原文
Changing a light bulb is easier than changing the fixture housing it.
出自-2015年12月閱讀原文
All of those specialized bulbs led to the building of specialized light fixtures, from the desk lamp you study by, to the ugly but beloved hand-painted Chinese lamp you inherited from your grandmother, to the ceiling fixture in your closet, to the light in your oven or refrigerator, and to the light that the dentist points at you.
出自-2015年12月閱讀原文
A CFL cannot be simply installed in an incandescent fixture and then expected to produce a visual appearance that is more than washed out, foggy, and dim.
出自-2015年12月閱讀原文
All of those specialized bulbs led to the building of specialized light fixtures, from the desk lamp you study by, to the ugly but beloved hand-painted Chinese lamp you inherited from your grandmother, to the ceiling fixture in your closet, to the light i
2015年12月六級真題（第一套）閱讀 Section B
The whole fixture must be replaced — light source and luminaire — and this is never an inexpensive proposition.