Plastic contact lenses may move UVB until you could have paid for UV blocking function
With out UV blocking contacts you should put on glasses/ski goggles/no matter when you may have a look at the bulb
Gentle years2 – out of enterprise – Replace Jan 2019
Founding father of VitaminDWiki purchased a GE lamp fixture Jan 2019 and used UVB bulk from earlier Gentle 12 months 2 fixture
Bulb is alleged to final 4,000 hours, so UVB bulb would price 1 cent per hour
GE 16466 Fundamental 18 Inch Fluorescent Beneath Cupboard Amazon $13
G15T8E 15W Germicidal UV-B Fluorescent Lamp $25 together with USPS to Seattle
OR Ushio BC3286 USHIO G15T8E 14.7W Midrange UV Fluorescent Lamp Amazon $38
Put the bulb and fixture at prime of a ladder (close to the ceiling) and measured UVB at chest degree 7 toes from bulb
Comparable studying with a direct view of the bulb and with reflector made with aluminim foil positioned between the ceiling and the wall
8 IU per minute: UVB Meter calibrated for 20% of pores and skin space for a 20 year-old (roughly face and arms)
500 IU per hour – 20 year-old
5,000 IU per 10 hour- 20 year-old
1200 IU per 10 hours for a senior (assumes 1/4 as a lot UVB created Vitamin D)
It seems that the celing paint, by itself, doesn’t replicate any UVB
As anticipated, the plastic bulb cowl on the GE fixture is opaque to UVB
UVB depth at 2 toes throughout countertop
Countertop may replicate, so studying can be decrease if no countertop
Depth 85 @ 2 toes with reflector
5,300 IU per hour – 20 year-old, 1300 IU senior
Warning: Begin with very brief durations
Strive in the future at ~3 minutes, and see if get UV burn/pinking the next day
Double the time every day,till get slight burn/pinking the next day, then scale back the length (maybe by 1/3)
Notice: Burning is extra seemingly if:
Lightyear
Claims that their UVB lamps places out little or no UVA (i.e. not good for tanning, needs to be nice for manufacturing of Vitamin D)
Made in US ( in enterprise for over a decade), ships internationally (your alternative: 110V vs 220V)
Suggests beginning with simply 2 minutes per use (day?), and constructing as much as 5 minutes per use
Non-obligatory extras embody : timer, glasses to cease UVB (recall that nearly all glass, each window and eye, block UVB)
1 bulb lamp, wall mount 21″ long, 1″ broad $134 regular ballast
Remark by VitaminDWiki
This seems to be the bottom price supply of indoor UVB
– 1 or 2 bulb fashions vs dearer Sperti 4 bulb mannequin, which incorporates timer, glasses, and so forth
Suspect that may have greater than a single session per day – however every could be shorter
Spectra of G15T8E (added July 2014)
Replace Oct 19, 2012: acquired the UVB lamp
$180 together with delivery
3 pages of directions embody the next
There’s a very very slight ozone scent when it’s on.
Subset of the Desk of session length and frequency for single UVB bulb
Replace Oct 26, 2012
Tried to measure how a lot UVB it has – with out success.
All strategies failed. It seems that all of them measured/ or had been calibrated on UVA from the solar and assumed that UVB can be proportional
This bulb doesn’t have the pure UVA/UVB ratio, so the measurements don’t apply
replace Nov 11, 2012
Have ordered for a further UVB bulb – compact fluorescent
Have ordered for a Vitamin D Meter: mannequin 6.4 – which measures simply UVB and converts it into IU per minute.
$185 together with delivery
Will use the meter to check all 4 sources of UVB which I’ve bought.
Mounted UVB fixture to the best of the lavatory cupboard
I discover myself brushing & flossing tooth in addition to shaving extra typically than up to now (getting vitamin D whereas doing it)
No tan anticipated, because the lamp has little or no UVA
Investigating reflector to extend the depth of UVB which I get.
Notice: Can’t use a mirror to extend depth because the glass within the mirror absorbs UVB
replace Nov 11, 2012 – “dermfix 3000 uv b lamp for vitamin d”
Used a bit of furnace duct as a reflector – which elevated the depth about 3X.
Paths of sunshine with reflector
Guess that gentle depth elevated 3X with reflector
Measured UVB and IU
1000 IU @ 2 toes 5 minutes utilizing Photo voltaic Meter converter
Parameter 3 Pores and skin kind 2
Parameter 4 Pores and skin uncovered 50%
Parameter 5 SPF 0%
Parameter 6 Facultative tan 0%
Parameter 7 Age: 66
Their Excel converter Spreadsheet is connected on the backside of this web page
The 1000 IU is a greatest guess primarily based on present analysis
Extra analysis is required to see if any of the next may change the estimate
Zero UVB to eyes with out and with customary glasses
Paths of sunshine if had a great reflector
I’ve no intention of constructing this sort of reflector.
2016 Replace
Put in in home subsequent to exercycle
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#2: Sperti
The Sperti Vitamin D equipment is the ONLY medical gadget (OTC) acknowledged by the FDA and has been utilized in medical analysis.