A traditional light bulb can't do any of this. A regular light bulb, whether LED, CFL, or incandescent, just turns on or off. Some are dimmable if connected to a dimmer switch, but that's about it. In short, if you want your lights to be more functional,replace your regular bulbs ...
A. It is dimmer. B. It is less safe. C. It is much brighter, safer, and more convenient. D. It produces more harmful fumes. 相关知识点: 试题来源: 解析 C。中文解析:文章中提到“The electric light bulb has many advantages over traditional sources of light. It is much brighter, safer...
its light will not get dimmer over time. The LiFi bulb is not the first technology to extend the amount of time between bulb replacement. Light-emitting diodes (LEDs) have also been used with the same effect, but these tended to significantly increase the retail price of televisions made thi...
The T12 bulbs in the basement give off a dimmer light. 8 T8 Bulbs Suitable for precise lighting needs with consistent output. T8 bulbs provide the consistent light we need for detailed work. 11 T12 Bulbs Less efficient fluorescent tubes with a 1.5-inch diameter. The old warehouse still has...
Dimmable smart bulbs let you adjust the brightness level to your liking right from your phone—no dimmer switch required. This not only sets the right mood but also saves energy when full brightness is not needed. Often, you can get more than one feature in a single bulb; for example, ma...
A ghost light is one that is left burning in a theater after everyone goes home for the night. Besides the supersititions, a ghost...
A light source that spills or scatters light in all directions is a major source of light pollution. This is because when an open bulb releases light, most of it is directed upward, instead of focusing on a specific spot. And that light that is scattered upwards is wasted and lost light...
You’ve probably noticed some light bulbs look a lot warmer, or orange even (think: typical edison bulb) while some look so blue! That’s Kelvin color in a nutshell and you have power over that. Color temperature is a way to describe the light appearance provided by a light bulb, it ...
What happens to the brightness of a light bulb when the current flowing through it increases? Electricity: The bulb is a type of electric component which is passive in nature and therefore consumes the electric energy produced by an electric source. The bulb is analogous...
b. Both light bulbs will glow dimmer. c. Both light bulbs will glow brighter. d. Both light bulbs will go out. e. Not What happens to a bulb when a conductor is wired in series with the bulb (bulb lights or doesn't light)? Is the switch open or closed? ...