Ultrafire LW20X PRO Long-Throw Flashlight.
Introduction.
The LW20X PRO is the white-emitter version of the Apex Pro series of throwers, the other being the LG20X PRO with green emitter and LR20X with red emitter. It’s an 18650-based light with only a single gear, 100% 
It has a nice deep reflector to scoop up as much light as possible and toss it into a nice tight beam for maximum throw. It’s rated 500lm continuous, with an amazing touted runtime of 2hr45min. So there should be no stepdown, with sustained brightness vs what other lights do, put out a burst of bright light then fade to half brightness or less to keep from cooking itself.
It has an easy to reach tailswitch with momentary-on, so you can easily use it for signalling, or for quick flash’n’dash usage.
It comes as a complete kit with everything you need.
What’s In The Box.
The sizeable box with cute graphics holds the foam insert that cradles everything securely. You of course have the light with included cell, plus lanyard, charging cable, extra O-rings, and printed manual.
The cell is an Ultrafire-branded 3000mAH button-top cell.
First Impressions.
Right from the unboxing, everything seems secure in solid packaging that keeps it all safe from shipping to storage.
The fit and finish of the light is excellent. It’s a semigloss black, perfect finish, no dings, nicks, voids, gaps, nothing. No sharp edges or points anywhere. Threads are substantial and smooth, but could use a touch more lube. They’re unanodised, so physical lockout isn’t an option, but it makes better electrical contact in exchange.
The flap over the charging port is secure. I’d personally snip off the little nubbin that might grab or catch on clothes and pull open the main flap, but that’s just me.
The button has a nice feel to it. No wiggle or play, just firm and springy. Momentary is easy. My Pokomon has just a hair’s difference between momentary and clicking through, but this button has a nice range between momentary and clicked.
The light has some nice heft to it. It’s a substantial light, for sure. Knurling is aggressive for grip, but doesn’t bite when holding it. It has a great feel to it.
There’s a complete circular guard around the tailswitch. Finally! No idiotic thumbguard with cutouts that make you hold the light a certain way else have pointy edges digging into your thumb. The smooth all-around guard just feels good. In fact, I found myself activating the light with my index finger rather than thumb. It’s that comfortable.
The UI.
Press partway for momentary, click through for on. That’s it. On, off. Couldn’t get any simpler.
Momentary even lets you easily signal, eg, Morse code.
Charging And Battery Status.
Whenever you turn on the light, the LED next to the charging port lights up to tell the battery status. Green good, red bad.
Similarly, when charging, it lights up red when charging and green when done. My light was charging for a long time and seemingly never turned off, but it never went above 4.17V, which is perfect. It would be nice to know it finished, but as long as it never overcharged, I’m happy.
The Beam.
The beam itself is a tight pencil-beam of light that holds up well over distance. Even at only 500lm, it puts most of that light on the target.
There’s a bit of fuzz around the hotspot, but not at all objectionable. It seems to smooth out at distance.
Color is really nice. I was expecting a cold white beam, but it seems just a hair warmer than neutral against a white wall or ceiling. Actually quite nice.
My T5 has a brighter beam when cranked up, but the hotspot is wider and diverges a bit more with distance. I expressed concern about that, but was assured the LW20X threw farther. True dat. I was shining on trees on the next block, and yes, the T5 was brighter, but at double the distance, the now much wider hotspot would fade faster and more. At extreme distance, I’m betting the LW20X would hold together longer. If it weren’t for bugs eating me alive at night (I’m like sugar to them), I would’ve tried getting longer range shots.
Wishlist?
About the only improvement I could think of would be using a 21700 over an 18650, for almost double the runtime.
But there may be a reason for that. If using it as a WML (weapon-mounted light), and using a Piccadilly mount, there’s a maximum width of battery tube that would fit. Just a guess.
Summary.
The LW20X is a nice little thrower with impressive runtime and sustains that output for the duration vs having to step down. It seems built like a tank. It has convenient onboard charging. Using it is simplicity itself. The tight beam holds together over distance.
Pix to be added as I can swing it.
