An Amazon customer called this smart light bulb one of the best on the market: "These are some top of the line smart bulbs. Can you find cheaper bulbs as far as costs is concerned? Yes, you can. But the saying
Energy-saving light bulbs can ___ electricity and help protect the environment. A. save B. waste C. use D. consume 相关知识点: 试题来源: 解析 A。“save”节省;“waste”浪费;“use”使用;“consume”消耗。节能灯泡可以节省电并有助于保护环境,所以选 A。反馈...
In order to save electricity, we should use energy-efficient light bulbs. Which word means “energy-efficient”? A. powerful B. economical C. bright D. colorful 相关知识点: 试题来源: 解析 B。解析:本题考查词汇理解。powerful 强大的;economical 节能的;bright 明亮的;colorful 多彩的。根据句意...
Although the act didn't ban the use, purchase, sale or manufacture of incandescent bulbs, it did require household light bulbs to have 25 percent greater efficiency (which means 25 percent less energy use) than the traditional bulbs that used between 40 and 100 watts of electricity. The ...
and parking lots. They also boast impressive energy efficiency, converting more electricity into light compared to traditional bulbs. However, HID bulbs have a longer start time to reach full brightness and may cast a slightly bluish hue. Additionally, they require special ballasts to regulate power...
High-Power LEDs can generate so much waste heat that they'll damage themselves without proper cooling. Don't let the term "waste heat" fool you, though, these devices are still incredibly efficient compared to conventional bulbs. To control, you could use aconstant current LED driver. ...
百度试题 结果1 题目It is said that the new light bulbs ___ (consumption) less electricity.相关知识点: 试题来源: 解析 consume 反馈 收藏
百度试题 结果1 题目语段填词 The new light bulbs ___(消耗) less electricity.As a result, they have saved large ___(数量) of energy for us. 相关知识点: 试题来源: 解析 consume; quantities 反馈 收藏
Basically, LEDs are just tiny light bulbs that fit easily into an electrical circuit. But unlike incandescent bulbs, they don't have filaments that burn out, they use less electricity, and they don't get especially hot. They're illuminated solely by the movement of electrons in a semiconducto...
Energy-efficient, dimmable, and colorful, these smart light bulbs and starter kits will turn you on to the convenience of a smart home.