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The situations where I wouldn't rely on this light are if I intend to hike or need light for many hours in the dark, or use it outside in a storm. It has enough battery life that it could be used all night in an emergency, and it did do fine in light rain, (but was ultimately killed by the washing machine) so I think it could work in a jam, but if I know that heavy storms, long hours hiking in darkness, or midnight evacuations are likely then I'm bringing a more robust headlamp. USB Rechargeable: plug in a micro USB cable and charge away. There’s no batteries and the life from the built in battery is outstanding. Lux was measured by a UNI-T UT383 BT at 5 meters. Lumens were measured in a homemade lumen tube using a TSL2591 sensor, calibrated with a Maukka calibration light. The temperature was monitored with a MLX90614 IR temperature sensor. Lumen measurements The RovyVon Aurora A8x keyring torch has a maximum output of 650 lumens from the Cree XP-G3 cool white LED and is powered by a built-in 330mAh lithium polymer battery. The cell is rechargeable via a micro USB port towards the base of the light which provides fast and efficient charging. I also am usually using low or medium power, which gives hours to days of solid runtime. Except for briefly spotting things I never use the higher modes for more than a few seconds. If you are like me and are comfortable traveling under the light of the moon or even just starlight then this light will be good for you. If you feel the need to hike with your high beams on then this will not be adequate.
Main LED High (260 lumen, 120mins)- Bright, brighter than I would need most of the time, so not too useful for me.There are a bunch of versions of this series of RovyVon lights. But the A28 in specific is available with Cree XP-L (likely HD) and Nichia 219c. There are also three secondary options: Red/UV, and White/UV, and White/Red. What you see here is the Nichia 219c Red/UV copy. Price My emitter of choice is the Nichia 219c, which is High CRI (90+). The other option is a Cree XP-L. The emitter is under a TIR optic, which I think has seen some changes since the A23 review – see the beamshots of the two for comparison purposes. A23 beamshot link. Micro USB instead of USB-C. Also the dust cover eventually disappeared so it would be nice if it was more sturdy, this may have prevented the washing machine from killing it, who knows.
Main LED Very High (450 lumen, 90mins)- Way brighter than I was expecting, definitely brighter than any other light I've owned. Only capable of I think 100sec of use before stepping down brightness due to heat, but honestly it's too bright except for investigating strange noises in the dark. A nice feature for sure but I rarely use it for more than a few seconds at a time. The Rovyvon A8x UV uses a built-in 330 mAh lithium-polymer (LiPo) battery.It is not user accessible nor serviceable.If you manage to wear out your battery, reach out to Rovyvon if it’s within the warranty period. And what I ended up with is a light that surprises me in almost every way almost always in a good way. This light comes with two main LED options and two auxiliary LED options. I chose the Nichia 219C with Amber/Red/Blue as my setup. Features Using and carrying this light is awesome. It’s compact and light weight, while outputting enough light for everything I have used it for. The only negative with this light for me is the Amber auxiliary LED — it’s too bright and completely useless. I would get the UV model if I were to do it again as I have to think that it would be slightly more useful with the low white side light. Overall What better way to start 2020 than a post about the RovyVon A28 Flashlight. It has a clear body and secondary emitters – red and UV.The button is a side switch, just below the head. It’s a metal-cover e-switch. The metal button has a metal surround, which both gives a place to find with your finger, and helps prevent accidental presses.
Lux was measured by a UNI-T UT383 BT at 5 meters. Lumens were measured in a homemade lumen tube using a TSL2591 sensor, calibrated with a Maukka calibration light. The temperature was monitored with a MLX90614 IR temperature sensor. My review copy has Nichia 219c, which is a high CRI variant. I’m very pleased this is an option both because I’d prefer the high CRI (90+) and also I think XP-G3 is just really, really bad. So I have Nichia, and I think you’ll be happier with it too.Measurement disclaimer: Testing flashlights is my hobby. I use hobbyist-level equipment for testing, including some I made myself. Try not to get buried in the details of manufacturer specifications versus measurements recorded here; A certain amount of difference (say, 10 or 15%) is perfectly reasonable. Rovyvon uses a wide array of materials on their Aurora lights: polycarbonate, GITD, aluminum, stainless, titanium, and copper (whew, did I miss anything?).So no matter what body material you’re looking for, Rovyvon has you covered.The A8x UV is one of the polycarbonate models.I think this might be my first polycarbonate flashlight.Yes, that means it’s essentially a fancy plastic.But Rovyvon didn’t choose polycarbonate just to be cheap – the ultra-clear material makes the A8x very lightweight and it allows for a single body material while being able to use it as a lens for the side-firing auxiliary lights.And it looks pretty sweet, being able to see all of the internals.The bezel of the A8x is stainless steel, which does a little bit to offset the light-weight polycarbonate.I always appreciate a nice stainless bezel for (1) its great looks, and (2) its toughness / drop protection. I really like this choice of materials. The stainless bezel protects you from drop damage. The GITD is pretty neat. The polycarbonate keeps things extremely light weight. And another attribute that I like about the polycarbonate: it’s pretty forgiving. I have a tendency to hold keychain lights with my mouth, especially while helping the kids at night. Have you ever sneezed while holding an aluminum flashlight with your teeth? No? Well, it hurts. Bad. Polycarbonate is a less risky material if you’re going to be holding a flashlight that way. All the modes are easy to get to and navigate with the single button. It only takes a minute to get the hang of it, unlike many competitors. UV Lantern (3hrs) - Interesting novelty, maybe you can find a cool bug or spot a fake ID with it, not too useful for me.
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