Item Name: UVB SMD LED Chip 1W
Model Number: GG-3535UVB-2030
Input Current: 100-150mA
Power: 1W
Input Voltage: 5-8VDC
LED package type: ALN Ceramic 3535
Chips brand: Taiwan Chips
Emitting Power: 20-30mW
Color: 305-315NM
UV-B lamps are lamps that emit a spectrum of ultraviolet light with wavelengths ranging from 290–320 nanometers.
This spectrum is also commonly called the biological spectrum due to the human body's sensitivity to light of such a wavelength. UV-B light does not tan the skin very much, compared to the UV-A lamps that are used in tanning beds.
Parameter | Symbol | Conditions | Min | Avg. | Max | Units |
Forward Voltage | VF | IF=150mA | 5.00 | -- | 8.00 | V |
Thermal Resistance Junction To Board | RΘJ-B | IF=150mA | -- | 8 | -- | °C/W |
Radiant Flux | Φe | IF=150mA | 20 | 30 | mW | |
Peak wavelength | λp | IF=150mA | 305 | 315 | nm | |
Temperature Coefficient of Forward Voltage | ∆VF/∆T | IF=150mA | −− | -2 | −− | mV/°C |
Reverse Current | IR | VR=5V | −− | −− | 10 | μ A |
Viewing Angle [1] | 2Θ1/2 | IF=150mA | −− | 120 | −− | Deg |
 |  |
| 4W and 8W UVB LED Chips with max 160-240mW emitting power | 1W UVB LED chip with 3535 package 20-30mW |
Ultraviolet B Light Emitting Diodes (LEDs) Are More Efficient and Effective in Producing Vitamin D3 in Human Skin Compared to Natural Sunlight
Vitamin D, the sunshine vitamin is important for health. Those with fat malabsorption disorders malabsorb vitamin D and thus must rely on cutaneous production of vitamin D3. Vitamin D3 is generated secondary to exposure to ultraviolet B (UVB) radiation (whether from the sun or from an artificial source). Light emitting diodes (LEDs) have been developed to emit ultraviolet radiation. Little is known about the efficiency of UVB emitting LEDs tuned to different wavelengths for producing vitamin D3 in human skin. Ampoules containing 7-dehydrocholesterol were exposed to a LED that emitted a peak wavelength at 293, 295, 298 or 305 nm to determine their efficiency to produce previtamin D3. The 293 nm LED was best suited for evaluating its effectiveness for producing vitamin D in human skin due to the shorter exposure time. This LED was found to be 2.4 times more efficient in producing vitamin D3 in human skin than the sun in less than 1/60th the time. This has significant health implications for medical device development in the future that can be used for providing vitamin D supplementation to patients with fat malabsorption syndromes as well as patients with other metabolic abnormalities including patients with chronic kidney disease.
Guangmai Technology is a proffessional company in making the UV LED chips. We make UVC LED with 265-280nm, UVB LED with 305-315nm and UVA LED with 365-405nm wavelength.
For more details, please contact with us directly.
FAQ
Q1. Prices conditions
A: Price can be FOB, CIF ,EXW, or With taxes.
Q2. What will be the delivery time and what will be the mode of payment ?
A: We have large quantities in Stock for normal color,Normal size ,for special color and products sizes it need to 3-5 days to customize.
50K units is available for most of our models in normal color and sizes.
The payment can be T/T transaction, Letter of credit,Western Union.
Q3. Shipment will be over sea or by air ?
A:Generally speaking ,we ship the products by DHL UPS FEDEX express since the products isn't too heavy for the transportation.
Q4. Could you please send me the sample for the same . So that i could see and analyze its quality?
A:Yes. We can send samples first, samples need to be charged if the value is higher.
Q5. Will there be any contract for this business or trade ?
A:Yes, there is a normal contract before the order is placed.
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