0
Typical prices in the UK in 2008 are used in this answer only to illustrate the method of calculation needed to answer this question. To make a comparison for wherever you live, just substitute your own local currency and costs for the particular lamps you want to use (lamp purchase prices, cost of labour for lamp replacement and unit costs for electrical energy) and then you just have to do all the calculations! Any total money savings will depend on several things: - how much a lamp is used over a particular period of time - the purchase price of the lamp - the cost of installing/replacing the lamp. In a domestic "home" environment it is often assumed that the labour needed to replace a lamp costs nothing - unless, of course, you actually have to pay someone to help you to do it. But in any office, shop, factory or similar "business" environment there will definitely be a labour cost. For simplicity a very low labour cost to replace a lamp has been assumed in the calculations below, but this is only an estimate: it would have to be adjusted to take into account the actual costs of labour for the time needed to replace lamps at each site. Assumptions used in making the comparison:
- an overall five year period of lamp use
- a typical business use environment of (say) 5 days per week for (say) 50 weeks per year
- a labour cost to make the replacement of (say) £2 per lamp
- a 60 Watt Type R80 Reflector Conventional Incandescent Lamp (CIL) costs £1 and has a typical life of 1000 hours
- a 15 Watt Type R80 Reflector Compact Fluorescent Lamp (CFL) having similar light output to the 60 Watt CIL, costs £15 and has a typical life of 5000 hours
- mains electrical energy costs £0.10 per unit kiloWatt-hour (kWh) Scenario A - Average lamp usage 1 hour/day First compare the basic purchase price and labour costs associated with replacing the lamps over a period of 5 years. 60 Watt CIL:
Total use over 5 years: 1hr/day x 5 days/week x 50 weeks/year x 5 years = 1250 hours.
You would therefore need to buy 2 CILs, each lasting 1000 hours.
Cost £1 each to buy plus, for each lamp, a £2 labour cost to fit it.
Total CIL lamp purchase and installation cost over 5 years: £6. 15 Watt CFL
Typical lamp life: 5000 hours over 5 years
You would therefore need to buy 1 CFL.
Cost £15 each to buy plus, for each lamp, a £2 labour cost to fit it.
Total CFL lamp purchase and installation cost over 5 years: £17. Now compare energy usage over 5 years: 60 Watt CIL: (60Watts) x (1 hour/day) x (250 days/year) x (5 years) = 75,000 Watt-hours = 75kWh.
At (say) 10 pence per kWh the CIL would use £7.50 worth of energy over the 5 year period. 15 Watt CFL: (15Watts) x (1 hours/day) x (250 days/year) x (5 years) = 18,750 Watt-hours = 18.75kWh.
At (say) 10 pence per kWh the CFL would use £1.875 worth of energy over the 5 year period. Now compare the overall total costs: 60 Watt CIL:
Buy-in price and labour costs £6 + energy £7.50 = £13.50 total cost. 15 Watt CFL:
Buy-in price and labour costs £17 + energy £1.875 = £18.875 total cost So, with 1 hour/day average daily use, over a period of 5 years, using a CFL costs more money overall than using a CIL.
The extra cost is: (£18.875 - £13.50) = £5.375
which is (£5.375/£13.50) = about a 40% extra money cost.
Scenario B - Average lamp usage 4 hours/day
First compare the basic buy-in price and labour costs associated with replacing the lamps over a period of 5 years. Total use over 5 years: 4hr/day x 5 days/week x 50 weeks/year x 5 years = 5000 hours
You would therefore need to buy 5 CILs, each having a life of 1000 hours, or 1 CFL having a life of 5000 hours. 60 Watt CIL: 5 lamps at £1 each plus, for each lamp, a £2 labour cost to fit it.
Total CIL lamp purchase and installation costs over 5 years: £15. 60 Watt CFL: Cost £15 each to buy plus, for each lamp, a £2 labour cost to fit it.
Total CFL lamp purchase and installation costs over 5 years: £17. Now compare energy usage over 5 years: 60 Watt CIL: (60Watts) x (4 hours/day) x (250 days/year) x (5 years) = 300,000 Watt-hours = 300kWh.
At (say) 10 pence per kWh the CIL would use £30 worth of energy over the 5 year period. 15 Watt CFL: (15Watts) x (4 hours/day) x (250 days/year) x (5 years) = 75,000 Watt-hours = 75kWh.
At (say) 10 pence per kWh the CFL would use £7.50 worth of energy over the 5 year period. Now compare the overall total costs: 60 Watt CIL:
Buy-in price and labour costs £15 + energy £30 = £45 total cost. 15 Watt CFL:
Buy-in price and labour costs £17 + energy £7.50 = £24.50 total cost So, with 4 hours/day average daily use, the money saved by
using CFLs instead of CILs over a period of 5 years is £45 - £24.50 = £20.50.
This is a money saving of £20.50/£45 = about 45% money saving.
Scenario C - Average lamp usage 8 hours/day
First compare the basic buy-in price and labour costs associated with replacing the lamps over a period of 5 years. Total use over 5 years: 8hr/day x 5 days/week x 50 weeks/year x 5 years = 10,000 hours 60 Watt CIL: You would need to install 10 lamps lasting 1000 hours each
at a cost of £1 each to buy plus, for each lamp, a £2 labour cost for fitting it.
Total CIL lamp purchase and installation cost over 5 years: £30. 15 Watt CFL: You would need to use 2 lamps each lasting 5000 hours
at a cost of £15 each to buy plus, for each lamp, a £2 labour cost for fitting it.
Total CFL lamp purchase and installation cost over 5 years: £34. Now compare energy usage over 5 years: 60 Watt CIL: (60Watts) x (8 hours/day) x (250 days/year) x (5 years) = 600,000 Watt-hours = 600kWh.
At (say) 10 pence per kWh the CIL would use £60 worth of energy over the 5 year period. 15 Watt CFL: (15Watts) x (8 hours/day) x (250 days/year) x (5 years) = 150,000 Watt-hours = 150kWh.
At (say) 10 pence per kWh the CFL would use £15 worth of energy over the 5 year period. Now compare the overall total costs: 60 Watt conventional:
Buy-in price and labour costs £30 + energy £60 = £90 total cost. 15 Watt CFL:
Buy-in price and labour costs £34 + energy £15 = £49 total cost So, with 8 hours/day average daily use, the money saved by using a CFL
instead of a CIL over 5 years is £90 - £49 = £41.
This is a money saving of £41/£90 = about 45% money saving.
What else can I help you with?
What is fluorescent lamb?
Perhaps you are asking about fluorescent lamp. This is an electrical device that uses a fluorescent bulb to give off light. The bulb is a recent invention designed to give energy savings in the residential area. The fluorescent bulb used to be used exclusively in industrial applications, but the new bulb is small and compact enough to be used in a home lamp.
Why does my Compact fluorescent lamp spark inside lamp when I turn it off?
sparks occur when the electrons are excited. This can happen by givong energy to electrons. Instead of city voltage, the magnetic fields or electromagnetic waves in air could give that energy.
Why is a lamp called a lamp?
THATS WHAT I AM WONDERING FOR MY PROJECT!Haha, I am thing maybe along the lines of they light lamps. but i am not sure if it is a girl, boy, or whoever.
Does a compact fluorescent lamp use 60 watts the same as a standard lamp?
40 watts is 40 watts, that is what you are paying for. However, an incandescent bulb uses the 40 watts to make light and heat. The compact bulbs make more light and less heat for the same wattage. To actually save, choose a lower wattage that will give acceptable light levels.
Do CF light bulbs produce as much heat as incandescent bulbs?
No, compact fluorescent bulbs run much cooler that an incandescent bulb. A CF bulb can be unscrewed when the lamp is on whereas an incandescent will give you a bad burn if this is tried.
Why do you use compact fluorescent lamps instead of incandescent bulbs?
A compact fluorescent lamp or CFL has the advantage of consuming less power.It works in the same way as a fluorescent tube light however it is made in a much more compact shape. This means CFLs can be used to replace ordinary light bulbs which have incandescent filaments.If you replace your ordinary light bulbs with CFLs they will use only 20% (one fifth) of the energy to give you the same amount of light output.More informationEnergy-saving lamps, such as normal and compact fluorescents, save a lot of money compared to normal lamps which have an incandescent filament because of the fact that fluorescents don't use a high-temperature filament that produces more heat energy than light energy.Mainly because they run "cool", a fluorescent lamp uses only about one fifth - 1/5 - of the electrical energy used by a lamp that has a hot, incandescent filament.Put another way, you can use five fluorescent lamps, each giving out the same amount of light as one incandescent, for only the same total electricity running costs.Another good thing about fluorescent lamps is that they have a useful life that is between 5 and 10 times longer than an incandescent lamp, saving even more money over a period of years.
What is the Average cost of running a 60 watt bulb for a year?
The average cost of running a 60 watt bulb for a year, with an average electricity rate of $0.12 per kilowatt-hour, would be around $52.56. This calculation is based on leaving the bulb on for 8 hours a day for 365 days.
How many watts does a compact fluorescent bulb draw?
Look for an amperage on the ballast. Multiply this amperage by the connected line voltage. This will give you the wattage of the unit.
Fluorescent HID lights best accompany what soil type?
Fluorescent HID lights work well with all types of soil, instead try matching the type of fluorescent light with the type of plant you're growing. Standard fluorescent give of duller light and work better with starting a plant that will eventually go outside. Compact fluorescent, on the other hand, give of much more light and work best with growing larger plants indoors.
What are the different gases introduced into fluorescent lamps that give them their specific colors?
I think that you may be confusing fluorescent tubes with neon tubes. Fluorescent tubes use a phosphor coating on the inside of the lamp which is in a limited spectrum. Some tubes are cool white, warm white, and daylight. There is also a gro lux which is on the warm end of the spectrum used for growing indoor plants.
How does an 25w compact fluorescent bulb provides the same amount of light as a 100w filament bulb but use less electricity?
A 25W compact fluorescent bulb produces the same amount of light as a 100W filament bulb by converting more of its energy into light rather than heat, making it more energy-efficient. This is because compact fluorescent bulbs use a different technology (fluorescence) to produce light compared to the incandescent technology used in filament bulbs.
Which can give light similar to natural sunlight an incandascent or fluorescent lamp?
Neither incandescent nor fluorescent lamps can provide light exactly similar to natural sunlight. However, fluorescent lamps are closer in color temperature to natural sunlight compared to incandescent lamps. LED lamps with a color temperature of around 5000-6500K are the closest artificial option to mimic natural sunlight.
