I am of course still in but man too bad 3D can’t be located. I personally can’t reflow leds. I have a couple of floodier 4000k lights I find quite yellow. I guess if I am going to find out how much I like 4000k in a thrower, the most potent stock led flashlight on the market will be the way to test it. Looking forward to this monster
I would advise by the same lamp with two different LEDs. So you know what you like. Sell the unwanted.
I tried that out with the Lumintop IYP365.
The Cree is 200lm
The Nichia 219B is 140lm but CRI 90, around 4000K.
I carried both a week and used it both every time. After two days I knew I want Nichia high CRI and don’t care about less lumen in real live.
It was important to use the lights, based only on 5 minutes playing it would have been the Cree.
With a coupon you should get the IYP365 for arround $12 each. Ask M4dm4x
That lamp makes also a nice gift for relatives if you won’t sell it.
There’s no need to reflow anything. This is a single emitter light, it only costs $8 to $10 to buy a new emitter already reflowed to a DTP copper mcpcb. Mtn Elec has a 3A available. If your specific about wanting a 3D, then there might be stores overseas that carry it.
I agree, I really like my 5A BLF A6 (well the astrolux version), so much so that I sold my 3D version.
This is a Nikon D3400 with the 18-55mm kit lens, it is technically a lower end camera then the D80 but it is so much newer it completely blows the D80 out of the water. I really miss my 18-200mm lens though, I had to sell it to afford the D3400 (which I got a great deal on a used one). Right now I am stuck with the stock kit lenes, ended up selling all my lens collection to pay for the camera and a few other things I needed.
I just never realized how much I liked that 18-200mm, man that lens was nice, it did it all in one lens. I would like to get an 18-140mm to replace it but not looking likely anytime soon.
Speaking of cameras and zoom lenses, have you guys seen the videos on YouTube of the Nikon P900? 83x zoom. It’s been out about 2 years, but I never heard about it. It blows me away.
This one guy even caught the International Space Station using one. Very cool.
That is a really neat camera indeed, heard rumors that nikon is working on a new version with 50% more zoom, raw pictures and 4k video. That would be a beast of a camera for sure.
I really liked the P900 with it’s 83x optical zoom but could not quite swing for it so I found an awesome deal on the Canon SX60 HS with 65x optical zoom and it’s zoom is stunning but the ISO is not good for night shots like a DSLR camera would be…. I am hoping in the near future they will have a DSLR with the zoom capabilities of the new Hybrid Camera like the P900 and SX60 HS cameras
4000K sounds great for a thrower, due to lower scattering as you mention - and this bin of emitter having a higher lumen output than anticipated is awesome. Hopefully they’re all like that.
I’d like to know why the XHP35-HI was chosen over the XHP35-HD? The reason I ask this is because I was reading over the Cree data/specs on both emitters, and comparing the lumen outputs. The HD series in a 4000K is 40 more lumens versus the HI at same testing specs at 85 Celsius. I imagine it has something to do with the dome on the HD emitters? I’m only asking this for knowledge! Looks to me like the HI series is a de-doomed HD?
I have also searched the web looking for these XHP35-HI emitters, and wow, it appears that they are almost extinct! lol Wondering if Cree will continue to produce them?
To expand on what Enderman wrote, the round domes that leds have are there to have a magnification effect. It produces more output by making the die seem larger. I think around 50% larger. This is a bad thing for thrower style lights. Just like putting a xhp70 in a thrower style light, the larger die size creates a wider variation of angles against the reflector.
You see, the reflector is designed to bounce light at one specific angle centered on the die.
By removing the dome, the dies true smaller size is revealed. The smaller the die size, the more parallel the beams angles are and the better focused the light is. This is how you get good distance.
Here is a pic that shows it better.
Ideally you’d want a pinpoint light source, but we don’t have that. So we have to find the best compromise in die size to lumen output. Dedomed xp-g2 can make for really long distances, but the hotspot is small and output is weak. Dedomed xhp70 is really bright, but makes for a large hotspot which just can’t travel very far. The XHP35-HI is pretty much the best choice for a thrower light. The hotspot size is decent, plus the brightness is good, plus it’s capable of really long distances.
If you research thrower lights from all the top flashlight companies, they always use the XHP35-HI.
Also, there’s no shortage of them. All the places that sell leds carry them. Mtn Elec has 3 different ones in stock right now. They are not even very expensive. $8 to $10 already reflowed on to a DTP copper mcpcb.
