I don’t understand?
The video @Qubeet posted was great. I wish he’d’ve had the LPH73B emitter. I’m guessing the XHP70.3 is similar?
L6 has larger reflector in diameter but slightly shorter than L21A/B
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Convoy L21A
LHP73B 4000K
20A buck driver and the battery
Discard the XM-MR 5700K part as you won’t find that LED in the Convoy shop
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@Toaster79 I’ve attached the screen shot of the page I see. I don’t see that “20amps buck 12groups” option on my page. Other than that, I think I have it down pat.
FYI, my beam shots didn’t turn out well. The L50 has an Osram P9 LED emitter @6500K. Honestly, mine looks to me more like 4000K. Also, the center beam is almost indiscernible, it’s more of a flood light that a spot, which is what we like. The video below has some excellent shots in it. Those are exactly how our light appears.
You’re browsing on your computer, I’m on the phone. Lower down the page should be description where it says what leds are paired with what driver and reflector.
If you like the broad transition of the beam into the spill you might have a look at previously suggested M21K. It has a slightly bigger head and it’s using a lens instead of reflector. It’s also gonna be bulkier and heavier but since you mentioned you’re using it on your porch I’m guessing you’re not carrying around. It will still fit in the jacket or hoodie pocket but not your pants.
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I finally found beam shots of the M21F with the LPH73B LED and at 4000k. This looks like the one, @Toaster79
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I wish they’d done it when it was fully dark out. Better than nothing though!
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I suggest not getting the EVE PL-50 cells, despite their high performance. They have a high self discharge rate, so they will need to he charged often, even if the light isn’t used. I would get a Molicel or the Reliance RS-50.
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@CollectEverything Yes, but I’m sure they’d have only looked even brighter.
@Irons Just when I thought I had it all squared away 
Okay, this is from this page: Convoy M21F gray 21700 flashlight. I’m not sure what it all means but…so which one?
EVE INR21700-50PL 5000mAh Maximum tolerable current 60A
- Molicel P45B 4500mAh $ 6.65
- Molicel P50B 5000mAh $ 10.29
Samsung INR21700-50S2 5000mAh Maximum tolerable current 25A
- Reliance INR21700-RS50 5000mAh $ 6.65
Reliance INR21700-RS50 5000mAh Maximum tolerable current 70A
- BAK INR2170-45D 4500mAh $ 5.19
@Toaster79 opinion? You’ve been so helpful so far 
INR is the battery chemistry. 21700 is the size. Molicels and the RS50 can all supply the max current for your LED (30A). The 5000mAh cells will give about 11% more runtime than the 4500mAh ones. Molicel has been making reliable cells for quite a while, whereas Reliance is new to the market (as far as I know).
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That Childbot company looks like a typical Amazon scam company. I’d avoid it.
Otherwise, I’d recommend using two different lights… one for short range, and one for long range. Because they typically won’t both work well in a single light unless it has some sort of feature to switch between the two.
Like, a Noctigon DM1.12 has a throw beam and a flood beam that you can switch between. It’s neat. But it’s also quite a bit bigger and pricier and more complicated than the Wuben you’ve got, and doesn’t come with a battery or have a charger built in.
The spec to look for is the candelas per lumen, or cd/lm. Most decent-quality lights will give info about their candelas, or at least their throw in meters. And a lumen count. Divide one by the other and it gives you a number for “how throwy” the light is. The range goes from about 0.1 cd/lm for a light bulb … to about 10,000 cd/lm for a laser. Usually about 2 to 10 cd/lm is a fairly floody short range light, and most practical throwers are more like 30 to 100 cd/lm.
That Wuben is spec’d at 10,000 cd (200 meters) and 1200 lm, meaning 8.3 cd/lm. So it’s not a very throwy light, and I wouldn’t recommend it for long range. Seems pretty decent for short range though.
For comparison, a Wurkkos TS11 does about 95,000 cd (616 meters) at 2000 lumens, which works out to 47 cd/lm. It is a lot more throwy, meaning you can go a lot farther, or reach the same distance at a small fraction as much power. In practice, you could see about 3X farther with it. You’d probably also want the 18650 tube for it, since it uses a little 18350 battery by default. Maybe it’d be enough without though, since it needs only a fraction as much power for the same distances.
Anyway, you already have a short range light, so I’d maybe look for a compact thrower. Use your Wuben to see the ground near you, and a thrower to see what’s happening far away. The TS11 isn’t my personal favorite mini-thrower, but it’s in my top 3. It’s cheap, decent, reasonably small, and has a charger built in.
For my own use, my favorite is an Emisar D1 with Osram W1 LED, 18350 tube, and RGB button. It doesn’t have a charger, but it’s even smaller and does a whopping 124 cd/lm (112,000 cd / 900 lm). So it has a very narrow, intense beam for looking at things far away… and it’s utterly useless up close. I only need it for a few seconds at a time, to check “what’s that over there?” before I go back to my short-range light.
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@Irons in researching the cells, mainly the Reliance INR21700-RS50, the EVE PL-50 cell keeps popping up as THE one to beat. Nonetheless, I don’t know what the deal is because some are saying the “A” version has a high self discharge rate but the “B” version is good. Either way, I just need a battery and the RS50 seems like it’ll be it. Thanks for the tip on the PL-50, potential problem avoided.
@ToyKeeper thanks for all the information and advice. It must’ve taken a bit to compile that and I appreciate it. Nevertheless, I think we’ll stick to using just one light. If I told my wife she had to go on the porch at night and then switch back and forth between two lights she’d brain me with one of them. Currently, for our simple needs, the L50’s working out fine. We like it and about my only comment on it would be “a little brighter wouldn’t hurt”. With that said, it works well as is.
The light I’m interested in is this one: Convoy M21F gray 21700 flashlight. I couldn’t find any specific information on candelas per lumen, or cd/lm. IIRC, it’s 4000 lumens max and a 700 meter range? That sound right?
Anyway, this is all becoming ancient Greek to me. Life was so much simpler when a MagLite with a simply on/off switch, was the hot ticket.
Addendum: I went to the Convoy site to see if I missed some information and I get this warning. I’m about done.
"NOTE!
Some NV1010 LEDs are short-circuiting due to incorrect PCB soldering positions. Please be sure to test them with a multimeter or DC power supply before use.
Previously, I was using SBT90.2 MCPCB; in the future, I will specifically design a dedicated MCPCB for the NV1010.
In regards to the high self discharge issues of (some of) the EVE 50PL: Nkon (reliable Dutch/EU seller) has now listed a new version of the 50PL of which they state that the self discharge issues should be resolved with. I posted about it in this topic:
I’ve personally purchased 6 EVE 50PL batteries a while back and only 1 of them had high selfdischarge; the others are in storage and have kept their storage voltages perfectly fine over the past couple of months, so it’s not that all previously produced 50PL have this issue, but it is kind of a lottery though.
Fortunately there are many options to choose from in the 21700 5000mAh tabless/single-tab that all perform extremely well and (pretty) close to each other, so I consider ‘us’ lucky that we have 5(?) of these well performing cells, with the 50PL (upcoming “V2.0”), RS50, 50XG, JP50, and according to tests by Mooch the (new) Ampirius 5000Q/50Q that Convoy now offers, also can (more than) hold its own between the other batteries mentioned.
So good to see there is close competition between all these brands and that we’re not limited to 1 or 2 of them to choose from.
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FYI, I am awaiting the arrival of the Convoy M21F 21700 flashlight as I write this. Thanks to everyone for all the helpful input.
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That’s a good choice. Which led option did you choose? LHP73B?
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Sorry @savagemann, I didn’t get an email notification of your post so I just saw this. Yes, the LHP73B. Hopefully, it’ll be here tomorrow.
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That’s a good choice. I have a few lights on LHP73B. They are great.
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Thanks, but I can’t take any credit. The folks here helped me to decide on all the options. I’m not into flashlights, I’m just a user.
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If that’s your first Convoy, trust me, it won’t be your last one 
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Well it’s been a couple weeks now and all I can say is it’s great. The light gets used nightly and always on high. I recharge about once a week or so. It’s exactly what I/we wanted and man, does it light up the place. Thanks, again, everyone.
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