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Cap / Base
Cap / Base Type
Manufacturers Average Lamp Life
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Crompton LED Frosted Golfball 4W ES Daylight (40 Watt Alternative)from Crompton (Model: LRES4DL)
This 4 Watt Daylight (40W Equivalent) Crompton ES Opal Golfball LED is the ideal replacement for the traditional incandescent lamp. Offering up to an 80% reduction in energy consumption and a 25,000 hour lamp life this non-dimming LED is a great choice for general lighting applications.
Potential saving for bulb over its manufacturers predicted life: £108.00
Assuming electricity is charged at p per kWh rate (most electricity companies charge approx. 12p per kWh).
|Cap/Base Type||Screw In|
|Colour Temp||6000 K|
|Energy Efficient Rating||A|
|Equivalent Wattage||40 W|
|Manufacturers Average Lamp Life||25000hrs|
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Frequently Asked Questions
We make every effort in answering your questions. Below is a list of those questions we are frequently asked. Please consult these before contacting us. Click on a question below to reveal its answer.
There are many different types of cap and base. The more common caps and bases include 'Edison Screw', 'Bayonet Cap', 'Small Bayonet Cap' and 'Small Bayonet Cap'. To view the more unusual caps and for a complete guide to light bulbs bases view our la…Read More »
Selecting the right colour temperature for you is a process which requires a degree of careful consideration. The colour temperature of a Light Bulb is a way of describing the colour of the light given off by the Light Bulb, and is measured in Kelvin…Read More »
The global LED lighting market has developed so that a wider range than ever of LED Light Bulbs/LED Tube Lights are now available, in a plethora of styles, shapes and designs. There are now LED Light Bulbs on sale which imitate the appearance of trad…Read More »
LED Light Bulbs are described as being 'instant on', meaning that they will reach full brightness as soon as they are turned on. One of the major strengths of using LED technology to illuminate your environment is that they will be able to provide yo…Read More »
Replacing wattage as the standard unit of brightness, Lumens is a new measure introduced with the arrival of energy saving and LED Light Bulbs. This was due to these types of bulbs being able to emit the same amount of light as conventional equivalents, with a greatly reduced power consumption.
Kelvin is a term used to describe the colour temperature, often displayed as just the letter K. Some common colour temperatures are 2700K, 3000K and 6500K, which relate to Very Warm White, Warm White and Daylight Light Bulbs.
Colour temperature, sometimes refered to as CCT (correlated colour temperature), is simply a method of describing the colour characteristics of a light bulb. Colour temperatures range from low (warm/yellowish) type colours all the way up to high (white/bluish) light.
Colour temperature is measured in "Kelvin" which is explained in more detail below. More information can be found on our colour temperatures example page.
Crompton Lamps LTD were founded in 1878 which makes them one of the oldest lamp businesses in the world. Today Crompton are still a UK based company that offer a large range of light bulbs which include LED Light Bulbs and LED Tubes.
Brightness is the term used to describe the effect of luminance on an observer. The maximum brightness is said to be found in Pure White whilst the minimum is expected to be found in Pure Black.
Instant Start is the term used to describe the instantaneous ignition of a light bulb. The term can be used in reference to Control Gear and LED Light Bulbs.
Ba22d is the technical term for Bayonet or BC capped light bulbs. This base is 22mm in diameter and has two pins which twist and lock into the lamp holder. The "d" at the end of the code refers to the double contact on the bottom of the lamp.
Ba15d is the technical term for Small Bayonet or SBC capped light bulbs. This base is 15mm in diameter and has two pins which twist and lock into the lamp holder. The "d" at the end of the code refers to the double contact on the bottom of the lamp.