UV Light Testers for UVC LED and 254nm Germicidal Lamp
UV light tester (UV meter) is designed to measure uv energy and uv light radiation intensity. Due to that the spectral response of the LED and low pressure mercury lamp (254nm germicidal lamp) is different, the two different uv light sources need to be measured using dedicated UV light meter. But some people would still ask what's the difference between the UV meters for LEDs and low pressure mercury lamps. Linshang Technology provides four professional UV light testers that can be used to measure 254nm low-pressure mercury germicidal lamps and UVC LED light source. What are the differences and characteristics of these four UV light testers? Let's find the answer in this paper.
1. UV sterilization application
With the development of the epidemic, sterilization has become an indispensable part of many people's lives. Many public places have also begun full sterilization. Among many sterilization methods, ultraviolet sterilization is a relatively effective and energy-saving method. In buses, airports, hospitals and other places, germicidal lamps are everywhere.
2. Is UV sterilization effective for viruses?
The sort of fused silica won't make the body of the germicidal lamp determines the wavelength emission of 254 nm UV energy. the sunshine is weakened into various colors and therefore the wavelength is measured in nanometers with 254nm ultraviolet , which is proven to eliminate bacteria, viruses and harmful pollutants. 254nm UV is extremely effective in sterilization and purification applications for air, water and surface disinfection.
Germicidal UV exposure is that the product of your time and intensity. The high-intensity within the short term and therefore the low-intensity within the long-term are basically equal within the lethal effect on bacteria. The inverse square law applies to germicidal ultraviolet rays an equivalent as ultraviolet rays: because the distance from the lamp increases, the lethality decreases. In the U.S. UV germicidal lamp, the typical bacteria are going to be killed within ten seconds at a distance of 6 inches from the lamp.
In order to achieve a good sterilization effect, it is necessary to purchase a germicidal lamp whose irradiation intensity reaches the qualified range. When used for a period of time, the luminous intensity of the germicidal lamp is attenuated, then its irradiation effect will be greatly reduced. UV light testers are needed for the germicidal lamp intensity measurement.
3. Best UV meter
Linshang Technology has four professional UV light testers that can be used to detect low-pressure mercury lamps and LED light sources.These four UV light tester are LS126C, LS125 + UVC-X0, LS125 + UVCWP-X1, LS125 + UVCLED-X0.The LS125 multi-probe UV light tester can be used to test the band of UVA,UVB.UVC with difference probes. The LS125 UV light meter host can match 9 probes totally. UVC-X0， UVCWP-X1， UVCLED-X0 are designed to detect the UVC band of the nine probes. The main differences are shown in the table below:
| Model | Price | Spectral response | Measurement range |
Unit | Resolution | App |
| LS126C UV light tester |
$380 | 230nm-280nm, λp = 254nm |
0 - 20000 μW / cm² |
μW / cm² | 0.1 μW / cm² |
√ |
| LS125+UVC-X0 | $412 | 230nm-280nm, λp = 254nm |
0 - 200000 μW / cm² |
μW / cm² (default), mW / cm², W / m² |
0.1 μW / cm² |
× |
| LS125+UVCWP-X1 | $442 | 230nm-280nm, λp = 254nm |
0 - 200000 μW / cm² |
μW / cm² (default), mW / cm², W / m² |
0.1 μW / cm² |
× |
| LS125+UVCLED-X0 | $442 | 240nm-320nm,suitable for testing 260nm-285nm UV LED germicidal lamp |
0 - 200000 μW / cm² |
μW / cm² (default), mW / cm², W / m² |
0.1 μW / cm² |
× |
Two major differences can be seen from the parameters in the table:
The first three LS126C, UVC-X0,UVC-WP UV light testers are designed for traditional 254nm low-pressure mercury lamp germicidal lamps, while UVCLED is designed for LED germicidal lamps.
The UVC intensity measuring range of the LS126C UV light tester is smaller than the other three models. If you need to measure high-power germicidal lamps,the latter three are recommended.
The optional unit of LS126C is only μW / cm² and the other three models can be switched to large unit display.(More information about UV light intensity measurement units)
4. Where are UV light testers used?
LS126C UV light tester is suitable for the intensity detection of UV germicidal lamps in hospitals, disease control centers, transmission windows and other occasions. It is provided with a 1-meter measuring hook. The instrument can be connected to mobile phone via Bluetooth to avoid ultraviolet rays from burning the test personnel. Suitable for germicidal lamps of low-pressure mercury lamp type.
LS125 UV light tester host + UVC-X0 is a wide range ultraviolet intensity measurement tool, suitable for UV intensity measurement of high-power germicidal lamps such as water treatment. Suitable for germicidal lamps of low-pressure mercury lamp type.
LS125 UV light tester host+ UVCWP-X1 is an enhanced version of UVC,which can be measured 1 meter underwater. Suitable for germicidal lamps of low-pressure mercury lamp type.
LS125 UV light tester host+ UVCLED-X0 is a UV light testerfor professional detection of UVC LED light source, such as 265nm, 270nm, 275nm UVC LED..
If you have more selection questions, please read
"How to Choose UV Intensity Meter for Germicidal Lamp"
"How to Select the Best UV Light Meter For Your Application".