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Light up the Lumens

How bright is a light bulb really? With incandescent lighting it’s fairly easy, choose a 40, 60 or 100 watt bulb and we all have a rough idea of how bright the bulb is.  But now you can choose from compact fluorescents and LED’s it’s not quite as simple.

A watt is a measurement of energy consumption, a lumen is a standard unit of light as seen by the human eye.  The lumen output will tell you how bright something is. 

The lumen output is now included on most lighting products packaging.     

Take a look at our easy guide to calculate the approximate total lumen output of your fitting. 

lumen to equivalent wattages

Bulb Efficiency

TYPES OF BULB

BULB EFFICIENCY (LM/W)

Standard Incandescent

Approx 15Lm

Halogen Lamp

Approx 25Lm

Compact Fluorescent (CFL)

Approx 50Lm

LED

Approx 80Lm

lumen calculator

Energy Efficiency

From March 2014 all lighting will carry an energy rating label in line with EU Directive 874/2012.

The energy rating A++ (very efficient) through to E (least efficient) is based on the lumen output and the wattage consumption.

A guide to current lamp types and their energy classes are as follows:-

LED Lamps

CLASS A – A++

Compact Fluorescent

CLASS A & B

Halogen Lamps

CLASS C & D

Incandescent Lamps

CLASS E

 



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