I noticed that Tattu offers three different versions of their UV Light and the reason why I wanted the U3S is that its brightness is 80lm and the battery power is 5200 mAh. In addition, it’s made for industry use and is a bit more durable in terms of its overall design.
With that being said is that while this works very well and have used it to check for invisible stains, as another reviewer has mentioned and I will mention, PLEASE WEAR UV GLASSES when using UV flashlights (if you can find clear UV safety spectacles that offer 99-100% UV protection, even better).
Its rechargeable and comes with a cable, so very easy to charge!
While this is 365nm and UV wavelengths of 320nm and below are known to be harmful, it’s good to err the side of caution.
Overall, a great UV light that works well, it does emit purple light and expected from 365nm to 390nm UV flashlights but useful for those that are trying to find stains in their home.
The Tattu U3S UV Flashlight 365nm Black Light Torch Rechargeable Blacklight is recommended!
