ALONEFIRESV43 36W 365nm UV Flashlight USB C Rechargeable Ultraviolet Black Light Woods Lamp for Pet Urine Detector, Resin Curing, Scorpion, Bed Bug, Fishing, Leak with UV Protective Glasses, Battery

I bought it after reading several reviews online comparing the latest UV lamps and I'm pleased. It feels heavy and durable. It would only charge with the cord it came with, and after fully charging, it was exceptionally bright--the glasses provided work well.

Good value for a simple well-made and robust blacklight. The USB-C and regular USB 3 ports are convenient for easy charging. It holds its charge well and has better battery life with a stronger beam than many other, more expensive blacklights. Highly recommend.

A versatile UV light that uses a 21700 size battery. The user interface includes two power output levels and light output ramping so the light needs better user instructions included with it, thus the downgrade to 4 stars. No mode memory so a momentary press has it come on in high mode. A second momentary press has it change to intermediate output mode. A press and hold has it go into ramping mode, either up or down. When it reaches adjustment extremes the light blinks twice then starts ramping in the opposite direction until the switch is released. NONE of this is covered in the included documentation with mine.Charging needs a USB A to A cable or the included A to C cable as a USB C to C cable does not work with the USB C port on the flashlight. The light has both USB A female and USB C female ports for charging.The beam is fairly diffuse and beyond about a foot or so the center brighter spot turns into a doughnut with a dimmer center, so not an ideal beam in my opinion. The light itself seems to be quite well made and the UV filter is very good at eliminating light other than the wanted UV.

I have the light, Alonefire SV43 365nm UV light, for two weeks, never had a UV light before, and spend three weeks to find a light, that would do everything, the internet was saying, it should do.I was looking for a 365 UV light for fun, to see, around the house, the unseen. I wanted an easily pocketable light that would work indoors, like at home, in the airplane, hotel, car, and strong enough during the day.It does the job on all fronts, for me.It is extremely solidly build.The light cone is wider with the imbedded 3LEDs, and that's what I wanted, as I was afraid, that I would have to go through the room inch by inch searching for whatever. It is more like two feet by two feet, while I am standing. Be prepared to see "the mess", though, on carpet, toilet, kitchen pots, walls, clothes , hands, etc.The throw, at night, in my 30 feel long room is no problem, not that I need it. The intensity is sometimes too bright without the yellow supplied glasses, thus the feature I did not know about before purchasing, namely that by holding the On/Off button, the intensity of the beam gradually dims - and goes back to full, comes handy.In the instructions, one is warned to not totally drain the battery, and hence another feature on this light comes handy - four lit dots by the On/Off switch, when the charge is full. As one depletes the battery charge, the dots, one by one, go off. I did not run out of juice in the hour I was playing with the light, thus I do not know, how long it would last.Nice feature is, that the charger is embedded into the light and, on top of that, one can use the charged battery to charge a phone.What I was missing on this light was a lense cover, in order not to scratch or dusty the glass, while in the pocket. I easily added a cover by finding a lid from some, around the house laying, container, that I fitted very snugly onto the lense. The lid happens to state the lid's measurement: 53mm (millimeters)Only the english of the very few sentences on the tiny 2" by 3" "Dear customer" sticker gives away its Chinese origin.From the above, it is easily recognizable, that I do recommend this Alonefire SV43 365nm UV light.

I love the power of this 365nm filtered uv flashlight. I have brought many of Alonefire's flashlights and they have all done exactly as expected. Great quality at a great cost. Love the package your recieved. Rechargeable batteries so your not wasting money to buy new batteries all the time. Alonefire has always been my goto flashlight.

Over priced. It took 2 times longer to cure a resin item than other UV flashlight that I have. Not as strong as claimed. Save your money.

This is one very powerful UV lamp and it quickly catalyzes UV polymerization of the crack and pit polymers sold for windshield repairs. I had used another unit and that was too weak, and polymer never hardened.

I really loved this light for a while but it seems that the older it gets the more it breaks down. I have had it for roughly 10 months and it tends to turn off randomly, and I need to click the power button multiple times to turn it off which leads me to not realize it’s still on sometimes, draining the battery entirely most times. I’d be careful buying one, but that being said the quality at first was so decent that I’ve considered just buying another incase I just got a faulty version because I’m still using a smaller version I got a few years ago and it works just fine still.