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Sep 22, 2010 · I find my kitchen quite dark at the moment with 35w, would 50w add a lot to my electric bill (6 GU10's in total) and is LED really worth it and what brightness in Halogen watts do they compare to? most LED's are £20 ish but i've found these which I could just about justify
For example, the lighting generally makes up more than 10% of your overall energy bills, and the usage of your home lights will vary depending on how often you’re home, and your work schedule.
However, for less efficient incandescent bulbs, it’s generally cheaper to turn them off when they’re not in use. Therefore, if you’re looking to save on your electricity bill, it’s important to consider the type of light bulbs you’re using.
Opting for energy-efficient bulbs like CFLs or LEDs in your lamps can lead to significant cost savings on your monthly electricity bills. When evaluating efficiency and cost comparisons of different types of lamps, it becomes clear that traditional incandescent bulbs are the least efficient option.
- How Have Lightbulbs Changed?
- Led Lighting
- Linear Fluorescent Lighting
- Halogen and Incandescent Bulbs
- Compact Fluorescent Lightbulbs
- How Can I Use My Energy-Efficient Lightbulbs Efficiently?
- Lighting: Seven Top Tips to Save on Your Energy Bills
Having first been employed extensively in the late 1870s on both sides of the Atlantic, it was inevitable that lightbulbs would be improved upon. The merger of Thomas Edison and Joseph Swan’s competing companies in 1883 created the first mass lightbulb manufacturer, but the incandescent bulbs they made at the time are now largely obsolete. This is ...
What types of energy-efficient lightbulb are there?
The main type of energy-efficient lightbulb used in the UK is the LED (light-emitting diode). It has largely replaced the inefficient halogen and incandescent designs that were formerly the most common types of bulb, and is significantly causing the phase-out of CFLs (compact fluorescent lamps) which were the first energy-efficient bulbs on the market.
Will energy-saving lightbulbs really save me money?
Yes. One of the key reasons why more people haven't switched to energy-efficient lighting is because they see them as more expensive. Often people base this assessment on the purchase price only, rather than the whole-life cost of a lightbulb. Halogen and incandescent bulbs have to be replaced much more often, and they use five times the electricity of low-energy lightbulbs, which means they actually work out to be very expensive. As LEDs have become more popular, the costs have come down sig...
Do energy-efficient lightbulbs really make a difference to the environment?
Yes, because they use less energy than incandescent bulbs. A lot of the energy that incandescent bulbs use ends up being wasted as heat rather than light, but not so much heat that you can benefit from it. Not only does an LED bulb use less energy, but a much greater proportion goes into light being emitted rather than heat. Additionally, if they use less energy, this dramatically decreases demand from power plants and therefore lessens greenhouse gas emissions. Their longer lifespan means th...
Does linear fluorescent lighting use a lot of energy?
Linear fluorescent lamps are a source of efficient and effective lighting in homes and industrial spaces - they're not often found in homes apart from potentially in workspaces like kitchens and garages. They're efficient and quick to light up but emit a harsher light that you don't want in most areas of the home, so they're not used that often.
How long does linear fluorescent lighting last?
Fluorescent tubes do have a limited life, although this will be several years. If there are signs of flicker, or a tube looks as though it has failed, it is worth checking if you need a replacement 'starter' before you consider replacing the tube. A starter is a small cylinder with two small T-shaped pins protruding from one end. It is mounted in a socket on the side of the lamp housing - it may not be immediately obvious, as it does not protrude much, and its end surface is only about the si...
Why do halogen lightbulbs use so much energy?
Halogen lightbulbs are more efficient than incandescent lightbulbs on a like-for-like basis. But, unfortunately, this is often cancelled out because people use more of them. There has been a trend to place a number of halogen lights in a row along a ceiling, partly for design reasons, but also because of the directionality of the light produced, several lights are normally required. The overall energy consumption can therefore be greater, even though a typical halogen bulb might have a maximu...
What types of halogen bulb are there?
Halogen bulbs tend to come in two types. There are low voltage (but not low energy) bulbs recessed into ceilings and walls. These are usually MR16 bulbs. These have a hidden transformer, stepping down from mains 230 voltage to the 12 volts of the bulbs; they are 'reflectors', giving directional light. There are also halogen bulbs that are put in open mounts, typically GU10 mounts, and these are normally found in kitchens, on spotlight ceiling bars, or ceiling plates. Although popular, they ar...
How does the life of a halogen bulb compare with an LED?
Halogen bulbs typically have a 2,000 hour (or two-year) life, only a fraction of the life of a compact fluorescent bulb, which typically lasts 6-15 years (or 6,000 to 15,000 hours). If you can't replace your halogen lighting, then it is best to make use of free-standing lighting fitted with energy-efficient bulbs as much as possible.
What types of compact fluorescent lightbulb can I buy?
CFLs are now available in a wide variety of powers, mounts (caps) and shapes. Reflector bulbs, for spot lamp applications, are also now commonly available. The caps that low energy bulbs are available in include bayonet (BC or B22), small bayonet (SBC or B15), standard Edison screw (ES or E27), small Edison screw (SES or E14), and GU-10 (to replace many non-recessed kitchen halogen bulbs). However, they are not available to replace 'low voltage' halogen lights, as used in housings recessed in...
How long do compact fluorescent lightbulbs take to light up?
One reason for people's reluctance to use low-energy bulbs is because of their experiences with early models. These took longer to light up to their full brightness, and they cast a very white light, which wasn't to everyone's taste, plus they were also bulky. But all these issues have been addressed. CFLs vary in their 'colour temperature', which is expressed in degrees Kelvin (K). Higher temperatures mean whiter light, cooler temperatures mean yellower light. People's tastes vary regarding...
Can I use dimmer and timer switches with compact fluorescent lamps?
Instructions for some time switches and light-sensitive switches sometimes allege that compact fluorescent lightbulbs can't be used with them. In most instances, this isn't the case. This advice may have arisen because some early CFLs took a long time to light up, which may have disrupted any light-sensitive circuitry in the switching device. The best way to find out is to experiment, to make sure the switches will work. Key indicators of incompatibility will be buzzing from the device or the...
While investing in energy-efficient lightbulbs is a great first step, there are various ways in which you can make sure you’re using your lights efficiently when they’re on. 1. Make sure you turn the lights off when you leave the room, unless you’re coming back 2. Only turn on the lights you need - for example, you probably don’t need to have both ...
Only turn the lights on if you have to. Daylight is the most energy-efficient form of light.Turn off lights when you leave a room, unless you are going back within a few minutes.Choose LEDs where possible.Avoid installing halogen lighting, especially the low voltage types which go in recessed fittings in ceilings and walls.- Ben Gallizzi
Established in 1920 British Electric Lamps have Established Themselves as One of the UK's Leading Providers of Lights and Lamps. View Bell Lighting and Lamps Now!
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Will energy-saving light bulbs save me money?
Lower energy bills: Based on running a 10w LED light bulb for 10 hours per week, you can save £16* per bulb per year in energy costs compared to a 100w light bulb, or running a 5w LED spotlight bulb, you can save £8* per bulb per year based on a 50w halogen light bulb. *calculation based on 35p per kWh unit price.
