DIY UVC LED for steriliser - possible?

[dadarara]

there are some china UVC LED lights with wavelengths in range of 250-300nm. and 14W power
https://www.aliexpress.com/item/1005001936129368.html?spm=a2g0o.cart.0.0.5caf3c00ni5mQo&mp=1
can they be used in a steriliser ? I will need 25W total power with about 1500 L/H flow rate.
obviously cant be really sure its really the UVC germicidal wavelength and the 14W power as advertised.

but maybe someone knows ?

 

[theatrus]

there are some china UVC LED lights with wavelengths in range of 250-300nm. and 14W power
https://www.aliexpress.com/item/1005001936129368.html?spm=a2g0o.cart.0.0.5caf3c00ni5mQo&mp=1
can they be used in a steriliser ? I will need 25W total power with about 1500 L/H flow rate.
obviously cant be really sure its really the UVC germicidal wavelength and the 14W power as advertised.

but maybe someone knows ?

LEDs for UVC are amazingly inefficient - you'll get a lot more power out of the standard tube lamps for the same wattage input. Its going to probably support 14W in, but radiant power is the metric you want to look for (not listed).

As you said, its very hard to check the power and frequency, even I don't have equipment that can measure anything below 380nm Note that you won't be able to see UVC, so a tell-tale sign that you have some ordinary violet LEDs is a violet glow.

 

[garbled]

If you watch some of the youtube videos from "bigclive", he does a bunch of teardowns of various chinese UV lights. More or less, with most of them, he finds that they aren't actually putting out UV in the "sterilizer" range.

That isn't to say the LED's don't exist, just that you need to be really sure you are actually getting UV-C and not just violet. I'm not sure offhand how one verifies that, without specialized equipment.. I dunno.. maybe blast some cyano with it and check under a microscope?