Why is '-ed' sometimes pronounced at the end of a word? What's the difference between 'fascism' and 'socialism'? Popular in Wordplay See All What do SCOTUS, POTUS, and FLOTUS mean? More Words with Remarkable Origins Terroir, Oenophile, & Magnum: Ten Words About Wine ...
watts = lumens ÷ (lumens per watt) What is the (lm/W) figure? lm/W stands forlumens per wattand is a unit measuring luminous efficacy and energy efficiency - how much visible light is produced for a given amount of electricity. As an example, a 60W incandescent light bulb may produce...
To compare the energy efficiency of two light sources, look instead at each one's lumens-per-watt performance, or how much light is produced for each watt of energy the light source consumes. Lumen A lumen is a unit of measurement gauging how much total light a device or bulb produces, ...
The author says as sales of LED lighting systems displace those of traditional incandescent light sources the lumens/ watt figure does not tell the whole story. To create a functional, high-quality product that end users...
105 Lumens 105流明 lumens 腔，流明（光通量单位）;If people want to replace their old power-hungry incandescent bulbs with cfls or leds good for 45 lumens per watt,all the better.如果人们想要把他们的高耗能白炽灯换成45每瓦流明的cfls灯或者leds灯，那就再好不过了。
What is the power consumption of a lamp that has luminous flux of 900 lumens and luminous efficacy of 15 lumens per watt (lm/W)?P = 900 lm / 15 lm/W = 60 WLuminous efficacy tableLight typeTypicalluminous efficacy(lumens/watt) Tungsten incandescent light bulb 12.5-17.5 lm/W Halogen ...
For example, a 100 W incandescent bulb produces about 1,600 lumens, for an efficiency of 1,600/100 = 16 lumens per watt. A halogen bulb, on the other hand, consumes only 72 watts for the same amount of brightness, making its efficiency 1,600/72 = 22 lumens per watt. A CFL bulb ...
About 12 lumens per watt is the average luminous flux from a standard incandescent bulb. The brightness of an emitted light source increases with decreasing radiation angle (with constant luminous flux). One helpful method to recall the many distinctions is as follows: * The amount of light ...
11.A former luminance unit equals to one lumen per square foot. 旧制光的亮度单位等于每平方英尺流明。 12.If you calculate 1000 lumens for 1m2 than your plants will be happy. 如果你计算1000流明平方米,比你的植物会快乐。 13.So if a 100-watt incandescent produces 1, 700 lumens, and a 20...
news.cecb2b.com|基于18个网页 2. 流明每瓦 流明每瓦(lumens-per-watt)是照明工业用来量测电能及光能间转换效益的标准。传统的白炽灯泡的转换效率为每瓦10到20流明 … nano.nchc.org.tw|基于2个网页 例句