the standard light bulb replacement
| The work horse of any home is the standard bayonet cap or B22 light bulb. This is the light bulb that hangs from the ceilings in bedrooms, halls and landings. It is also found in table and floor lights. The old incandescent version was either a 60 watt or 75 watt. The 60 watt bulb has a light output or brightness of 800 lumens. It also a very warm white colour of 2700 kelvins (yellowy white). | 
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| If the light bulb was in a bedroom and was on for 2 hours a day it would cost the following to run: 60 watt = £7.88 per year 75 watt = £9.85 per year However if it was in the living room and was on for 4 hours a day it would cost double that to run: 60 watt = £15.76 per year 75 watt = £19.70 per year These bulbs also have a lifespan of about a 1,000 hours so would last about a year and a half in the bedrooms and less than a year if in the living rooms. standard led replacement bulbTo replace this light with an LED Light you should ensure the light bulb has the following: Brightness = 800 lumens Colour = 2700 kelvins B22 Bayonet Cap Base. These lights generally run on 10 watts of electricity which means that they will save you around £6.50 a year if used in a bedroom or £14.50 if used in a living room. If you use it to replace a 75 watt bulb the savings will be greater. Additionally as an LED bulb has a life span of 20,000 hours compared to 1,000 hours for an incandescent light bulb, they should last for up to 20 years saving you even more money. | where to buy?homebaseHomebase have the TCP classic 60 watt replacement light bulb for £4.99. It is 10 watts, 810 lumens and 2700 kelvins and a life span of 25,000 hours. TCP are a respected brand and this price and quality is a great combination. If you need a dimmable version of this light it will cost £11.99. argosArgos supply a light from OSRAM with the same specification for £8.99 |