LED lamps typically use less power (watts) per unit of light generated (lumens). A good LED
lamp can generate twice as many lumens per watt as a CFL (50-100+ versus 40-80).
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Less greenhouse gas emissions from power plants
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Lower electric bills
LED lamps last much longer than CFLs, as much as 10x longer (50,000 hours versus 5,000
hours).
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Fewer spent lamps in the landfill
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Less frequent lamp purchasing/changing, especially important for hard-to-reach lamp
locations
LED lamps generate less heat than CFLs.
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Decreased load on Air Conditioning systems
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Reduced danger of burns from touching lamps
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Reduced fire hazards
LED lamps typically are RoHS compliant, meaning that they have no or at most negligible
amounts of hazardous substances within the scope of that compliance (lead, cadmium,
mercury, ...).
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Virtually no risk of environmental contamination
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No risk of personal exposure to hazardous materials
LED lamps tend not to have unpredictable failure modes. There are stories of CFLs catching
fire, emitting smoke and odors, exploding, etc. LED drivers are not nearly as unstable and
usually fail by just no longer supplying power to the LEDs themselves.
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Virtually no risk of fire/smoke/odor
LED lamps emit no Infrared or Ultraviolet radiation. CFLs (and tubular fluorescent lamps)
generate light by exciting the Mercury vapour inside the lamp with electricity, generating
Ultraviolet radiation
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No personal exposure to Ultraviolet radiation, which can cause cell damage
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Artwork and other sensitive items are not degraded as a result of exposure to
Ultraviolet radiation
LED lamps turn on instantly (reaching full brightness immediately). CFLs tend to have a
warm-up period which may range from a few seconds to over a minute.
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No wasted time or
electricity
LED lamps can be used in colder temperatures than CFLs