BULBS



STOCKISTS
Charles Edwards does not sell light bulbs. A selection of suppliers are listed below:
GERARD SUDRON
PHILLIPS
OSRAM SYLVANIA
BULBRITE
BELL
ECOLUX



  What to look for when choosing a light bulb


BULB SHAPE

You will need a light bulb with the correct base type to fit in the light socket. Most Charles Edwards fittings use light bulbs with standard Edison screw bases, for example a product listed as E12/E14 will take an E12 Edison (E) 12mm screw base for the USA or an E14 Edison (E) 14mm screw base for the UK or Europe.

Please note if you have specified an IP44-water-resistant-bulb-fitting that this fitting takes a G9 (UK and Europe), or G4 (USA) halogen bulb. View the fitting guide HERE

 

WATTAGE

USA Legislation: The Energy Independence and Security Act (EISA) came into effect on Jan. 1, 2011, in California and Jan. 1, 2012, throughout the U.S. This legislation requires all light bulbs to be upto 30% more efficient. This is a gradual phase out of inefficient bulbs.



LUMENS



COLOUR RENDERING INDEX (CRI)

Colour Rendering Index measures how true colours look. Traditional incandescent bulbs and halogen bulbs have a ‘perfect’ CRI of 100



COLOUR TEMPERATURE

Colour Temperature is measured in Kelvin (K), depicts the appearance of the light. Light bulbs with a lower colour temperature (2700-3000 K) produce a warmer light than a light bulb with a higher colour temperature (4000 K +).



APPLICATION

The use of the light fixture and the environment it is in should be taken into consideration when selecting a light bulb. The temperatures that the bulb will be exposed to, whether the bulb is dimmable and the number of on/off switches in the bulb lifetime are all factors which will determine if the light bulb is fit for purpose.

We recommended that picture lights used for fine art should be fitted with bulbs that have zero heat and zero UV to ensure that the artwork is not damaged by the lighting.







 


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