UVA LED 390nm 395nm 405nm 1watt SMD LED
Use Original high bin Sanan or Epileds chips
Packaging Dimension: 3.5x3.5 x1.8mm
Use Germany Heraeus Pure Gold wire only
Oxide aluminum ceramic base
Viewing Angle (2θ1/2): 60° ，90°，125°
LM-80 , EN62471 ，Rohs, FCC. APPROVED
Max with 4 years warranty
TOP10 LED Manufacturer in China
Over 12 years LED packaging experience
Fast delivery time 3-10days depends on order.
LED Product Specifications:
| Parameter | Symbol | Conditions | Min | Avg. | Max | Units |
| Forward Voltage | VF | IF=350mA | 3.4 | -- | 3.6 | V |
| Thermal Resistance Junction To Board | RΘJ-B | IF=350mA | -- | 8 | -- | °C/W |
| Radiance Power | Φv | IF=350mA | 400 | 600 | mw | |
| Color Temperature | IF=350mA | IF=350mA | 390 | 405 | nm | |
| CRI | Ra | IF=350mA | 95 | ** | *** | ** |
| Temperature Coefficient of Forward Voltage | ∆VF/∆T | IF=350mA | −− | -2 | −− | mV/°C |
| Reverse Current | IR | VR=5V | −− | −− | 10 | μ A |
| Viewing Angle [1] | 2Θ1/2 | IF=350mA | −− | 120 | −− | Deg |
What is UV LED curing?
UV LED Curing Because of the limited spectral wavelength, UV LED primarily operates in the UV-A zone and considered to be ‘safe’ because it is closest to visible light. However, prolonged exposure to this energy can be dangerous. The UV-B and much of the UV-C spectrums of light are primarily used for germicidal and sterilization purposes.
Background:
UV LED ink and curing systems have seen positive growth over the past couple of years due to advances in technology and the increasing demand for more environmentally friendly methods of curing, which at the moment are dominated by mercury lamps. The purpose of this bulletin is to look at the latest developments in UV LED inks and curing technology for narrow web converters.
UV LED Inks
UV LED inks differ from traditional UV free radical inks in their formulation. Special consideration of photoinitiators and pigments in the formulation must be made to match the spectral output of the LED lamps. These special photoinitiators absorb at a higher wavelength as opposed to traditional photoinitiators and are typically more expensive. The spectral output of a LED lamp to cure UV LED inks is very narrow, 365 – 405 nm, as compared to a UV mercury system which operates from 200 – 700 nm range.
UV LED Curing
Because of the limited spectral wavelength, UV LED primarily operates in the UV-A zone and considered to be ‘safe’ because it is closest to visible light. However, prolonged exposure to this energy can be dangerous. The UV-B and much of the UV-C spectrums of light are primarily used for germicidal and sterilization purposes. Light produced at these wavelengths are not only harmful to microorganisms, but are also dangerous to humans and other forms of life that may come in contact with it.* These lamps should always be shielded and never viewable to the naked eye, even though it may appear that little or no light is emanating from the device. Exposure to these wavelengths may cause skin cancer and temporary or permanent vision loss or impairment.
Product package dimensions:
Advantages of UV LED
No IR radiation, less heat
More compact than mercury systems
Low voltage
No shutters or glass quartz
Consistent and immediate UV output over operating life
No UVC and therefore no ozone emitted, eliminating need for exhaust
Does not contain heavy metals (mercury)
Longer life, + 20,000 hrs as compared to 1,500 hrs on a standard UV mercury lamp
Easier to convert materials that are heat sensitive
LEDs are more efficient than mercury bulbs
GMKJ Company overview:
UVA LED 390nm 395nm 405nm 1watt SMD LED samples are available for testing .
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