Recommended light for simulating outdoor direct sunlight in UV light weatherproof test chamber

There are many kinds of lamps that can be used in the UV weatherproof test chamber during the test. The total UV energy and spectrum of different UV lamps are different, and this difference may cause different test results. Therefore, it is important to choose which lamp to test, depending on the end use environment of the sample. The following is a recommended tube for simulating outdoor direct sunlight in an ultraviolet weather resistant test chamber:

To simulate UV radiation in outdoor direct sunlight, UVA-340 lamps are recommended because UVA-340 lamps have almost no UV light below 300 nm, and between 300 nm and 350 nm, UVA-340 lamps are more compatible with the UV spectrum of daylight. The ultraviolet light weatherproof test chamber UVA-340 lamp has a radiation peak at 340 nm.