Description : A homeowner replaces a 65 watt incandescent bulb with a 15 watt compact fluorescent lamp. The light is on 2000 hours a year. If electricity cost 10 cents a kilowatt-hour, how much money is saved on the electric bill in one year? w) $50.00 x) $10.00 y) $5.00 z) $1.00
Last Answer : ANSWER: X -- $10.00
Description : How much money do you save by using a 20 Watt Compact Fluorescent over an incandescent bulb?
Last Answer : An Energy Star qualified compact fluorescent light bulb can save you around $30 over it's lifetime, paying for its self in about 6 months.
Description : I have a 60 watt/120v clip-on lamp. What is the highest wattage of compact fluorescent bulb can I safely use in this lamp?
Last Answer : By the way, I mean actual watts on the fluorescent bulb, not replacement-watts. :)
Description : What is the equivalent of 100 watt incandescent light bulbs in LED light bulbs?
Last Answer : That is a very good question, so I ended up doing a little research on the internet to find the information. It appears in order to match the intensity of a 100watt light bulb, you'll need 15watts of LED light bulbs.
Description : Have you found any of the new 'non-incandescent' lights to your liking?
Last Answer : answer:I've used the curly compact fluorescents for many years. Whatever are the cheap ones at Lowe's or Home Depot. I see a box here that says Ecosmart brand Soft White. On the ... work in photography and we had to pay careful attention to lighting, fluorescent tubes presented a few difficulties.
Description : I need to install a new light bulb on a high ceiling. What are those things called that allow you to reach the cieling and install a lightbulb?
Last Answer : A…...ladder?
Description : A 60 watt light bulb runs for 5 seconds how much energy does it use?
Last Answer : 300 j of energy
Description : Assume CO2 equivalent emissions by the use of a 60 W incandescent lamp are of the order of 60 g/hr. If it is replaced by a 5 W LED lamp then the equivalent CO2 emissions will be a) nil b) 5 g/hr c) 12 g/hr d) 300 g/hr
Last Answer : b) 5 g/hr
Description : Which is a better floor lamp - incandescent or fluorescent?
Last Answer : Incandescent floor lamps emit a lower ray of light, therefore you won't get as bright a light shine. A flourescnet light is much brighter. It really depends on where you will put the lamp.
Description : Office lighting - incandescent or fluorescent?
Last Answer : The fluorescent lighting is what is used in most offices. This lighting offers great efficiency as well as encourages productivity.
Description : What is the Cost to run a 5 watt led bulb for a year?
Last Answer : Need answer
Description : New LED light bulbs: do they emit more or less heat than standard incandescent?
Last Answer : answer:I could not guarantee accuracy, but from what I know LED is cooler. You can find out for sure if you buy one of each, and take turns standing in from of each one.
Description : How many lumens in a 250 Watt incandescent lamp?
Last Answer : The actual amount of light (lumens) given off by a bulb depends on the how the bulb was made and with what materials. It depends on the filament material, its length and thickness, and the ... 3940 lumens at its highest setting.Philips 250 Watt 120 to 130V PAR38 Krypton Flood Bulb emits 3100 lumens
Description : Can I get an LED light installed into my incandescent downlight cans?
Last Answer : Yes, absolutely. As long as the LED bulb and incandescent bulb have the same base they will both fit the socket. The LED bulb will also run much cooler than the original incandescent bulb.
Description : Which light emitter is preferred for high-speed data in a fiber-optic system? ∙ A. incandescent ∙ B. LED ∙ C. neon ∙ D. laser
Last Answer : D. laser
Description : Which light emitter is preferred for high speed data in a fiber-optic system ∙ a. Incandescent ∙ b. LED ∙ c. Neon ∙ d. Laser
Last Answer : ∙ d. Laser
Description : Who do you call to replace the front of a kitchen drawer?
Last Answer : You might find something at a home store, but first you should try to find out what brand the cabinets are and if you can buy or order a replacement drawer front. If you can get one, ... handy that way, then finding someone who is. There are carpenters and handy-people who advertise their services.
Description : How much would it cost to replace a heating-oil system with natural gas?
Last Answer : answer:When I got a new furnace nearly two decades ago, it cost 2k. I think they've doubled or tripled in price since then. Maybe 5-7K. Then you may have to dig up a trench to put in natural gas. ... 'll be cold-a little-on the coldest days, but you save a little money on the cost of the furnace.
Description : How much will the total cost be to replace the complete evaporator unit (fan and coil) in a central air system?
Last Answer : 5 T, you’re looking at between 5 and 7 grand depending on the exact model of the system and the cost of installation. My neighbor just had this done. You might be able to get it for less but it’s probably going to be expensive any way you slice it.
Description : In a filament type light bulb most of the electric power consumed appears as – (1) visible light (2) infra-red rays (3) ultra-violet rays (4) fluorescent light
Last Answer : (2) infra-red rays Explanation: When electricity is passed through the filament, the filament gets hot. Depending on the temperature of the filament, radiation is emitted from the filament. The ... energy converts into visible light and rest of it is emitted as heat or infrared radiation.
Description : Luminance efficiency is minimum for a a. Fluorescent tube b. High wattage light bulb c. Mercury vapor lamp d. Low wattage light bulb
Last Answer : d. Low wattage light bulb
Description : Luminous efficiency is least for a A. mercury vapor lamp B. low-wattage light bulb C. high-wattage light bulb D. fluorescent tube
Last Answer : B. low-wattage light bulb
Description : Luminance efficiency is minimum for a ∙ a. Fluorescent tube ∙ b. High wattage light bulb ∙ c. Mercury vapor lamp ∙ d. Low wattage light bulb
Description : In a filament type light bulb most of the electric power consumed appears as (1) visible light (2) infra-red rays (3) ultra-violet rays (4) fluorescent light
Last Answer : infra-red rays
Description : Will the filament resistance of a bulb be higher at normal temperature or in incandescent condition ?
Last Answer : As the resistance increases with increasing temperature, the resistance of the filament of the bulb will be higher than the normal temperature.
Description : Incandescent lamps are classified according to __________. A. shape of bulb and type of service B. size and style of base C. operating voltage and wattage D. all of the above
Last Answer : Answer: D
Description : Two incandescent light bulbs of 40 Wand 60 W rating are connected in series across the mains, then . A) The bulbs together consume 100 W B) The bulbs together consume 50 W C) The 60 W bulb glows brighter D) The 40 W bulb glows brighter
Last Answer : Two incandescent light bulbs of 40 Wand 60 W rating are connected in series across the mains, then . The bulbs together consume 50 W
Description : Is the filament resistance lower or higher in a 500 watt light bulb than in a 100 watt light? Assume that both bulbs have been designed to operate at 110 volts.
Last Answer : ANSWER: LOWER
Description : How much does it cost to replace the bulb of an led TV?
Last Answer : Although some people like the idea of a plasma TV over a LED TV, fact is that LED TV's actually last longer and have a less chance of 'dying' before a plasma TV does.
Description : How to Replace a Fluorescent Light Ballast ?
Last Answer : How to Replace a Fluorescent Light Ballast You can count on fluorescent bulbs to shine brightly for different areas in your home, but they need to be replaced every now and then. Sometimes though, the ... time by replacing the ballast. Just follow these easy tips and you'll do this in no time.
Description : How much energy does it take to run a 100 watt light bulb for 24 hours?
Last Answer : It is usually measured in kilowatt hours. 100 watt bulb X 24 hours= 2400 watts or 2.4 kilowatt hours.
Description : If the voltage supplied to the lighting circuit is 110 volts, how much current is used by a 100 watt light bulb? A. 0.08 amps B. 0.91 amps C. 1.10 amps D. 90.9 amps
Last Answer : Answer: B
Description : A 100-watt light bulb is left on for 10 hours. Electricity is 10 cents per kilowatt-hour. How much did it cost to operate the light bulb?
Last Answer : ANSWER: 10 CENTS
Description : How much energy in consumed if a 100 watt light bulb is operated for 10 MINUTES?
Last Answer : ANSWER: 60,000 JOULES or 60kJ or 6X104J
Description : Used normally, a 150-watt, 120 volt light bulb requires how many amps of current?
Last Answer : ANSWER: 1.25 AMPS
Description : About how many times longer would a 10 watt light bulb be able to burn compared to a 100 watt bulb with the same energy? (A) 10 times longer (B) 100 times longer (C) Same time (D) None of the above
Last Answer : About how many times longer would a 10 watt light bulb be able to burn compared to a 100 watt bulb with the same energy? (A) 10 times longer (B) 100 times longer (C) Same time (D) None of the above
Description : A 100-watt light bulb turned on for 8 hours uses : (A) 800 Wh (B) 0.8 kWh (C) 8 kWh (D) None of the above
Last Answer : A 100-watt light bulb turned on for 8 hours uses : (A) 800 Wh (B) 0.8 kWh (C) 8 kWh (D) None of the above
Description : Can I use an incandescent dimmer with LED lamps?
Last Answer : answer:The answer is . It depends. Some of the newer LED bulbs can be used with dimmers. They have circuits specifically designed to sense the reduced voltage and convert it to a pulse width modulated signal at the ... try it. If it does not work there I am sure you can find another place to put it.
Description : What are the benefits of using LED lights over incandescent lights?
Last Answer : From what I could find in my research LED lights seem to be brighter and easier on your cars charging system. They are placed inside the headlamp against a silver backing that also helps make them brighter.
Description : When compared to incandescent lamps, what is the power requirement of an LED?
Last Answer : Very low.
Description : Would you have use for candelabra bulbs that were energy saving (CFL or LED), yet produced 75+ watt light equivalent?
Last Answer : answer:No, because I ate my vegetables when I was a kid and don't have a Daylight only restriction on my drivers license. Seriously though, like many people, my home lighting is 40W-equivalent for ... the lower wattage bulbs are plenty bright enough for most people. TL:DR - it's lack of demand.
Description : What can I do about a wall switch for an overhead light if the socket doesn't have a neutral wire and the switch does?
Last Answer : answer:This doesn't make sense. The ground wire is the bare-naked copper wire that's a little thinner than the others. In addition to a ground wire, if any, there must be two regular insulated wires ... though they can be wired to switch neutral. For lights it shouldn't matter. Does any of this fit?
Description : Should I paint the light colors of a room first or the dark colors first?
Last Answer : Probably depends upon how much of each color and where you’re going to use them. Generaly speaking, it’s best to paint the light colors first, since they are relatively easy to cover over if need be.
Description : Broke a fluorescent bulb, will i get mercury poison?
Last Answer : First thing: Relax. Second: You are fine. This was an issue with a former co-worker of mine who always cried like a baby when these things came in on a pallet broken. My boss, in order to shut him ... You would also have to eat the dust from inside the bulb to get poisoning right away. You're fine.
Description : Exactly how hazardous is it to break a fluorescent bulb and release the mercury inside it?
Last Answer : The Mercury inside the fluorescent bulb is not enough to cause any harm, it has very little amount of mercury , you can breathe it with no effects at all.
Description : What is the brightest Compact Fluorescent bulb?
Last Answer : The brightest compact fluorescent bulb is of over 100 lumens or higher outputs at higher drive currents.
Description : A handheld digital tachometer could give a bad reading if ___________________. A. aimed directly at the shaft B. partially aimed at a 60 Hz. fluorescent light C. positioned 5-10 inches from the shaft D. the tape is too shiny
Description : Who invented the electric bulb? (1) Thomas More (2) Thomas Alva Edison (3) James Watt (4) None of these
Last Answer : Thomas Alva Edison
Description : Are there T12 led fluorescent?
Last Answer : What is the answer ?
Description : Can you damage your eyes if you look directly at a lit 100 watt bulb?
Last Answer : It all depends on how far away you are, and how much ambient light there is already, But no, even holding your face eight inches away in a dark room won’t do any significant damage. Your pupils will contract so no damage is done.