Editing Compact fluorescent lamp (section)

===Starting time===
Incandescent lamps reach full brightness a fraction of a second after being switched on. {{As of|2009}}, CFLs turn on within a second, but many still take time to achieve full brightness.<ref>{{cite web|url=http://www.gelighting.com/na/home_lighting/ask_us/faq_compact.htm#flicker |title=Why does my compact fluorescent light bulb flicker or appear dim when I first turn it on? |work=Compact Fluorescent Light Bulb (CFL) FAQs |publisher=GE Lighting |access-date=2009-06-15 |url-status=dead |archive-url=https://web.archive.org/web/20090228044819/http://www.gelighting.com/na/home_lighting/ask_us/faq_compact.htm |archive-date=February 28, 2009}}</ref> The light color may be slightly different immediately after being turned on.<ref>{{cite web|url=http://www.gelighting.com/na/business_lighting/faqs/cfl.htm |title=GE Lighting Frequently Asked Questions&nbsp;— Compact Fluorescent (CFL): 4. Can I use a CFL in applications where I will be turning the lights on/off frequently? |access-date=2007-04-13 |url-status=dead |archive-url=https://web.archive.org/web/20070329191437/http://www.gelighting.com/na/business_lighting/faqs/cfl.htm |archive-date=March 29, 2007}}</ref> Some CFLs are marketed as "instant on" and have no noticeable warm-up period,<ref name="EnergyStarFaq-WarmUp">{{cite web |url=https://energystar.zendesk.com/hc/en-us/articles/212110657-I-ve-noticed-some-CFLs-need-a-few-minutes-to-warm-up-or-reach-full-brightness-Is-there-a-way-to-determine-which-warm-up-fastest- |title=I've noticed some CFLs need a few minutes to warm up, or reach full brightness&nbsp;... |work=Customer Help FAQ |publisher=Energy Star |access-date=2009-06-15 |archive-url=https://web.archive.org/web/20170324083650/https://energystar.zendesk.com/hc/en-us/articles/212110657-I-ve-noticed-some-CFLs-need-a-few-minutes-to-warm-up-or-reach-full-brightness-Is-there-a-way-to-determine-which-warm-up-fastest- |archive-date=2017-03-24 |url-status=bot: unknown }}</ref> but others can take up to a minute to reach full brightness,<ref>{{cite web |url=http://www.fcgov.com/conservation/lighting-faq.php |title=Why does it take time for CFL bulbs to come up to full brightness? |work=Efficient Lighting FAQs |publisher=City of Fort Collins |access-date=2009-06-15 |url-status=dead |archive-url=https://web.archive.org/web/20081210045249/http://www.fcgov.com/conservation/lighting-faq.php |archive-date=December 10, 2008}}</ref> or longer in very cold temperatures. Some that use a mercury [[amalgam (chemistry)|amalgam]] can take up to three minutes to reach full output.<ref name="EnergyStarFaq-WarmUp" /> This and the shorter life of CFLs when turned on and off for short periods may make CFLs less suitable for applications such as motion-activated lighting. Hybrid lamps, combining a halogen lamp with a CFL, are available where warm up time is unacceptable.<ref>{{cite web | url=https://www.ledsmagazine.com/home/article/16700874/ge-lighting-to-promote-halogen-cfl-hybrid-bulb-with-target | title=GE Lighting to promote halogen-CFL hybrid bulb with Target | date=5 September 2013 }}</ref> The halogen lamp lights immediately, and is switched off once the CFL has reached full brightness.