flicker light impact on people’s health

Iphone2 can detect flicker

IEEE did a lot of research and found flicker ,

http://www.essex.ac.uk/psychology/overlays/2010-195.pdf

Summary of Biological Effects

The obvious biological effects occur: 1) immediately from 2) flicker that is visible. The risks include seizures, and less specific neurological symptoms including malaise and headache. Seizures can be triggered by flicker in individuals with no previous history or diagnosis of epilepsy.

The less obvious biological effects occur: 1) from flicker that is invisible 2) after exposure of several minutes. Invisible flicker health effects have been reported to include headaches and eye-strain.

The table in the Appendix summarizes and categorizes the types of flicker and the biological effects they cause.
http://www.essex.ac.uk/psychology/overlays/2010-195.pdf

Many lamps on the market has flicker problem, most of them can be detected by iphone2, all of them can be detected by oscilloscope.

I.Incandescent lamp

Horizontal lines are the flicker light

Bulbrite 60w 130v

2015-01-11 21.16.58

II.Lamps

1.ADAMAX NEW HOUSE NHCLP-LED-PUR CLA You can see horizontal lines like waveform to move up

1ADAMAX NHCLP-LED-FOR CLAHflicker

1ADAMAX NHCLP-LED-PUR CLA lamp

II.LED LAMP

2.ADAMAX NEW HOUSE NHGS-LED-RD goose neck, horizontal line is flicker

2NEWHOUSE NHGS-LED-RDHflicker

2ADAMAX NHGS-LED-RD lamp

II.LED lamp

3.NORMANDE LIGHTING, GP5-3268-WH

horizontal lines to edge are flicker

4Normande GP5-3268-WH hflicker

Horizontal lines perpendicular to edge are flicker

4NORMANDE GP5-3268-WH Vflicker

5NORMANDE GP5-3268-WH LAMP1

II.LED

4.LED bulb FEIT BPAG800DM/LED horizontal lines are flicker light

14FEIT BPAG800DM:LED flicker

III。Fluorescent lamp

  1. Normande HM3-796 13W vertical lines are flicker light.

3NORMANDE HM3-796 13W LMP flicker

3NORMANDE HM3-796 13W lamp

III. Fluorescent

2.NORMANDE LIGHTING, HS3-1506A METAL SHADE vertical lines are flicker

6NORMANDE GP3-796-BS 13W flickerlight

6NORMANDE GP3-796-BS 13W lamp

III. Fluorescent lamp

3.OTTLITE 97900N SPIN LAMP vertical lines are flicker

7OTTLITE 97900N SPIN LAMPVflicker

7OTTLITE 97900N SPIN LAMP

III. Fluorescent

4.OTTLITE 915083 CRAFT LAMP horizontal lines are flicker

8OTTLITE 955083 CraftCAD Vflicker

8OTTLITE 915083 CRAFT CAD lamp

III.Fluorescent lamp

5.OTTLITE F23WG3 FLEX-NECK horizontal lines are flicker

9OTTLITE F23WG3 FLEX-NECK Hflicker

9OTTLITE F23WG3 FLEX-NECK lamp

III. Fluorescent lamp

6.OTTLITE 315G53 TASK 13W horizontal lines are flicker light

10OTTLITE 315G53 TASK 13W Hflicker

10OTTLITE 315G3 TASK 13W

III. Fluorescent

7.OTTLITE 717G53 TASK 13W horizontal line are flicker light

11OTTLITE717G53BLK13Wflicker

11OTTLITE 717G53 13W lamp

III。Fluorescent lamp

8.OTTLITE R75G59 horizontal lines are flicker light

12OTTLITE R75G59 UNIVERSAL FLICKER

12OTTLITE R75G59 lamp

9.OTTLITE K83G56 横线条纹就是闪烁光

13OTTLITE K83G56 Lamp flicker13ottlite K83G56 lamp

upright lighting led

NO FLICKER LIGHT, No infrared, no ultraviolet, no strong blue light

15uprightlightingllcnoflicker

www.uprlt.com

http://www.amazon.com/dp/B00IJZJ6ZS

ALL LAMP COMPARISON

all lamps side effect incandescent Fluorescent Market LED Upright Lighting LED impact on vision and health
low frequency visible flicker Yes Yes without PFC some have No Cause myopia; headaches, migraines, fatigue, epilepsy, and other neurological responses; Degrade reading performance;provide a distraction or annoyance for sensitive individuals.
infrared Yes No Some have No ocular lens damage, continuous wave retinal damage; lens protein denaturation and cataracts This is photothermal damage.
peak strong light Yes Yes Some have No keratitis (corneal epidermal necrosis, loss), eye pain, photophobia and tearing. Injury to corneal, lens, retina; Vitreous injury;dry eye; photoreceptor cell damage; age-related macular degeneration; macular retinal choroidal damage.
ultraviolet No Yes Some have No cataract,premature presbyopia,Pterygion; Retinal degeneration, retinal damage,photochemical lesions in the neural retina and retinal pigment epithelium; macular disease, blurred vision and image distortion symptoms. Chronic blepharitis, conjunctivitis, conjunctival elasticity and gloss loss, and pigment hyperplasia. UV-induced electric photophthalmia; customary system electric ophthalmia, the ultraviolet radiation keratoconjunctivitis. Skin aging black or skin cancer;This is photochemical damage.
unsafe electromagnetic raidiation Yes Yes Some have No 1)cell carcinoma induction; 2)abnormal hormone; 3)intense calcium loss; 4) triggering dementia; 5)abnormal pregnancy and abnormal birth; 6)high blood pressure and heart disease; 7) electromagnetic hypersensitivity; 8) depression increase.
high frequency invisible flicker No Yes Yes No Retinal degeneration,Choroidal neovascularization,photomechanical damage;headaches and eye strain.
low frequency ripple flicker Yes Yes Yes No Cause myopia; headaches, migraines, fatigue, epilepsy, and other neurological responses. Degrade reading performance, provide a distraction or annoyance for sensitive individuals.
unsafe blue light Yes Yes Yes No veiling glare intense enough to degrade visual performance,macular degeneration and other vision problem, photochemical damage and apoptotic cell death, and retinal injury. Blue light induce damage to retinal pigmented epithelial cells.
dimming high frequency flicker Yes Yes Yes No Retinal degeneration,Choroidal neovascularization,photomechanical damage

aMAZON Customer feedback

Date Comments
10/15/14 Fast delivery. thank you guys!

(Response Removed)

9/17/14 I found out about this but reading a study of lamps. At first ,this lamp seemed like it might not be enough light, but my eyes have seen the difference. They are not as tired after long stints reading. I don’t feel the strain and fatigue that I had under my old desk lamp with the harsh fluorescent. I was skeptical initially, but perhaps I didn’t need as much light as I thought. I’m keeping it.

(Response Removed)

8/26/14 Excellent product from caring creators/sellers, who promptly answered questions about a research article they wrote. I felt as if they cared about my well-being. I have experienced improvements to my vision, less dizziness and migraines, and an ability to stay focused longer. I highly recommend this for anyone who has seizures, migraines, dizziness, fatigue, or just needs to stay focused.

(Response Removed)

4/18/14 Lamp is excellent. Thanks!

(Response Removed)

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