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It depends on the type of bulb. Incandescent bulbs convert about 90% of the energy into heat and and only 10% is put off as light. LEDs, for instance, are much more efficient, converting almost 90% of the input energy to light. So, a 5 watt LED will convert about 4.5 watts to light, while a 25 watt incandescent will only convert 2.5 watts into light.
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Why is a 100 watt bulb brighter than a 25 watt bulb?
Because it takes more current and power and produces more light power. Running a 100 w lamp costs 4 times more than a 25 w lamp.
Why does a 100-watt lamp glow brighter than a 25-watt lamp?
because it has more watts
What it is the difference between 100 watts and 75 watt light bulb?
25 watts?
What is so special about the light from a laser?
it's monochromatic(all exactly the same wavelength) and every photon is in phase with all of the others(so, unlike ordinary light, all of the waves travel with the same wave shape) and it's a parallel beam, so the light doesn't diverge this means a 25 watt laser can cut through steel while an 80 watt light bulb can't it also means a 25 milliwatt laser leaves a brighter spot of light than an 80 watt light bulb(you can see the laser in the normal light) it also enables you to make a hologram it allows for lasersurgery
True or false a three way light bulb has 3 filaments?
False. They contain two filaments which are first switched on independently of one another (the lowest two settings), then switched on simultaneously to produce the highest setting. For instance a bulb containing a 25 watt filament and a 50 watt filament will produce 25, 50 and 75 watts of light.
Why is a 100 watt bulb brighter than a 25 watt bulb?
Because it takes more current and power and produces more light power. Running a 100 w lamp costs 4 times more than a 25 w lamp.
Which is brighter 10 watts or 25 watts bulb?
That depends on so much more then just the watt of the bulb, but if you have two identical bulbs where the only difference is the amount of watt, then logic dictates that 25watt is brighter then 10watt
Why does a 25 watt bulb glow brighter than 60 watt in a series circuit?
Because the filament of a 25-W lamp has a higher resistance than that of a 60-W lamp and, therefore, will experience a greater voltage drop -the lamp with the voltage drop closer to its rated voltage (in this case, the 25-W lamp) will be the brighter.
Why does a 100-watt lamp glow brighter than a 25-watt lamp?
because it has more watts
Does a 100 watt bulb produce more heat than a 25 watt light bulb?
yes, 4x more
Will a 25 watt light bulb effect a plant's growth?
Yes, if the bulb is incandescent, and you change from a higher wattage bulb to a 25 watt bulb the future growth will be smaller.
Do 100-watt light bulb use energy 4 times as fast as does a 25-watt bulb?
Yes, that is what the numbers mean.
How bright is 70 lumens?
A little bit less than a 25 watt incandescent bulb - the the table below:Bulb brightnessA 100 watt Bulb is rated at approximately 1700 lumensA 60 watt incandescent bulb is rated at approximately 800 lumensA 40 watt bulb is rated at approximately 400 lumensA 25 watt bulb is rated at approximately 180 lumensA 4 watt night light bulb is rated at approximately 20 lumens
What size light bulb is in a deep freezer?
Mine has a 25 watt 120 volt bulb in it.
Does a 25 watt light bulb draw more current than a 60 watt light bulb?
No, a higher wattage INCANDESCENT light bulb uses more current than a lower wattage INCANDESCENT light bulb. Some CF and LED bulbs are rated by the amount of light that an incandescent bulb would produce, but they are also rated by the wattage that they use.
How bright is 300?
About what you would see from a 25 watt light bulb.
How may watts is 400 lumens?
Bulb brightness in LumensA 100 watt Bulb is rated at approximately 1700 lumensA 60 watt incandescent bulb is rated at approximately 800 lumensA 40 watt bulb is rated at approximately 400 lumensA 25 watt bulb is rated at approximately 180 lumensA 4 watt night light bulb is rated at approximately 20 lumens
