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。
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
What is the luminous flux of a lamp that has power consumption of 60 watts and luminous efficacy of 15 lumens per watt?ΦV = 60 W × 15 lm/W = 900 lmLuminous efficacy tableLight typeTypicalluminous efficacy(lumens/watt) Tungsten incandescent light bulb 12.5-17.5 lm/W Halogen lamp 16-24...
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5.While the upper limit for incandescent lamps is 52 lumens per watt, that is the theoretical luminosity of tungsten at its melting point. 虽然白炽灯的发光效率极限是每瓦52流明,然而这钨丝在其熔点的理论亮度。 6.Fluorescent light bulbs are next The Department of Energy proposed a rule in Decembe...
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...
lumens = watts × (lumens per watt) How many lumens do I need? More lumens means more light. So, if you previously bought incandescent bulbs measured in watts, here's a handy guide showing how many lumens you might need and the wattage conversion. Note that these conversions use a set ...
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 ...
On the other hand, a 100-watt LED bulb can produce the same lumen output as an incandescent bulb, but with significantly lower power consumption. As we discussed earlier, LED bulbs have a much higher efficacy, typically ranging from 70 to 100 lumens per watt. This means that an LED bulb...
This final answer is given in watts per meters squared. This answer tells you that the light intensity at your point on the sphere is equal to the number of watts that the bulb radiates divided by the surface area of the sphere. If you had a 60-watt bulb in the center of this ...