answersLogoWhite

0


Best Answer

The higher the rated wattage of the bulb, the greater the luminous efficacy, which means you get more lumens per watt using a 120-watt bulb than using two 60-watt bulbs.

Check the lumen ratings for the two 60 watt bulbs, and compare it with the lumen rating for the 120 watt bulb. That should give you the answer you seek. The 60 watt bulbs may give off a light that is more yellow than the 120 watt.

A More Accurate

It depends upon the type of light bulbs used, and what you mean by "light". Incandescent light bulbs are very efficient at converting electricity into light, but unfortunately they emit most of that light in the infrared band, which humans cannot see. Therefore, we describe incandescent bulbs as being inefficient in terms of converting electricity into visible light.

Generally, higher wattage incandescent light bulbs operate at higher temperatures, and they therefore emit a greater proportion of the light in the visible spectrum. Consequently it is common to say a 120 watt bulb emits more than twice the light of a 60 watt bulb. In truth, a 120 watt bulb emits almost exactly double the luminescent energy of a 60 watt bulb, but because the 120 watt emits a greater proportion of its energy in the visible spectrum, it is common to claim that the 120 watt bulb emits more than double the light of a 60 watt bulb.

The situation changes considerably when talking about fluorescent and LED bulbs, which emit the majority of their luminescent energy in the visible spectrum. That is why they are so popular, because they use much less electrical energy to emit the same amount of visible light, compared to incandescent light bulbs. As a general rule, a 120 watt fluorescent or LED bulb will emit about twice the visible light as a 60 watt bulb.

<><><>

Watts is not a unit of light, but of power consumption. However, many people are familiar with the amount of light emitted from an incandescent lamp (bulb) of a given wattage, so that has become an unofficial way of expressing brightness. Many compact fluorescent packages are labeled with the incandescent wattage giving a similar light output.

User Avatar

Wiki User

โˆ™ 2015-07-16 18:57:21
This answer is:
User Avatar
Study guides

Physics

20 cards

What type of circuit in which all parts are connected in a single loop

What angle is between 90 and 180

What condition has symptoms that include ringing buzzing or roaring in the ears or head

What is the transfer of energy as electromagnetic waves called

โžก๏ธ
See all cards
3.94
โ˜†โ˜…โ˜†โ˜…โ˜†โ˜…โ˜†โ˜…โ˜†โ˜…
16 Reviews

Add your answer:

Earn +20 pts
Q: Do two 60-watt bulbs deliver the same light as one 120-watt bulb?
Write your answer...
Submit
Still have questions?
magnify glass
imp
Related questions

How many light bulbs would you burn out by using 88000 kilowatts?

If you used them simultaneously, probably around 1.46 million 60Watt bulbs.


What is a 60watt light bulb in halogen?

60 watts


How can you reduce amperage in a circuit?

You can only reduce amperage in a circut by reducing the number or size of devices plugged in to it. To make it easy, imagine you have a 120watt light bulb. Given your household voltage is normally 120v this would draw 1 amp, (volts X watts = amps). fifteen of these bulbs would draw 15 amps, the size of a commonly used circut breaker. The sixteenth light bulb added to the circut should trip the circut breaker or fuse to protect the wiring from overheating. If you chose to use 60watt bulbs instead you should be able to burn 30 of them before th breaker trips. Likewise if you needed 240watt bulbs, that same circut could only carry 7 of them.


What bulbs go in a s-10?

Headlight bulbs, high and low beam, parking light bulbs, signal light bulbs, brake light bulbs, dash light bulbs, interior light bulbs, plate light bulbs, etc.


Is xenon in light bulbs?

In some light bulbs.


Are light bulbs fragile?

why light bulbs are fragile


How much is 900 watts?

About as much as 15 typical (60watt each) light bulbs together. Or expressed in horsepower: about 1.2Hp Mains volts and ampere: 230 volt at 3.91 ampere = 900watt 110 volt at 8.18 ampere = 900watt


Do light bulbs emit light or suck dark?

Light bulbs emit light.


What can light bulbs do?

* light bulbs can kill you be very carfull


Do light bulbs emit light or suck in dark?

bulbs emit light


How many different kinds of light bulbs are there?

there are 98 different kinds of light bulbs. including colored light bulbs


What are light bulbs that save energy called?

Fluorescent light bulbs You could also have energy star light bulbs.

People also asked