Carbi Headlamp with remote phosphor

[aswang]

@Jerommel

Indeed, and i’m quite sure anyone will be more satisfied with pleasant high CRI neutral CCT light without a green hue.
But perhaps most customers just don’t know this is very well possible nowadays, and just accept that LEDs are cold blueish white with lousy color rendition.

True to an extent. But I know people who still prefer bluish, greenish low cri cold white despite me showing them the difference. They find neutral white, even my gorgeous nichia builds, too yellow.

[Omega_17]

Anyone with normal eyes can notice the better tint and CRI. THe difference is they will just call it high quality light without understanding the science behind it.

[Pedro_Albaladejo]

@Boro

Please consider sending a pre-release model of “CARBI” to one of reviewers on BLF! Looks promising.

Thanks Boro, we will consider to send a sample for review. We have a few of our prototypes in Ireland, Spain and Taiwan. Where would have to be sent for review?

@aswang

I’m sure a lot of people including me will be keeping an eye on your Carbi headlamp since it’s quite unique. I’m particularly interested on how it would perform while caving. The remote phosphor is also interesting and quite unique for a headlamp. Good to hear mode spacing is programmable since it was my major gripe.

Thanks Aswang, Carbi was originally conceived as a Caving lamp trying to emulate the carbide headlamps light, but after we build the prototypes we found the flood light really interesting for many other activities where you need see around you. You can take a look to this video comparing Carbi with Scurion.

@Lightbringer

G3s of any sort should never ever ever be used in a reflector. They have nasty angular tint-shift and will always result in a urine-yellow corona around a neutral(ish) hotspot with angry-blue spill everywhere else. Behind a TIR lens should be okay, as long as it’s well-mixed (eg, wider-angle flood with pebbled front). And quantity-over-quality to me just screams “cheap!”. Best to just look into the LH351D or 'B for better quality light.

Thanks a lot for the feedback. We selected the XP-G3 from a efficiency point of view, but we have also noticed with our prototype about that urine-yellow corona. I am ordering right now a few new LED boards with LH351D for testing.

[Boro]

[quote=Pedro Albaladejo]

@Boro

Please consider sending a pre-release model of “CARBI” to one of reviewers on BLF! Looks promising.

Thanks Boro, we will consider to send a sample for review. We have a few of our prototypes in Ireland, Spain and Taiwan. Where would have to be sent for review?

I would contact on BLF for one of our thorough reviewers.

We have a solid number of outstanding members/reviewers .

Contact the member and good luck.

Go to forums and look under LED headlamps.

ciao

[Pedro_Albaladejo]

Hi, just a quick update. We have finally decided to offer two ligth versions: cool light (5700K CCT and 80+ CRI) for people interested in lumens performance) and natural light (4000K CCT and 90+ CRI). You can see the specifications in our website, updated just a few days ago. We will use Cree for both versions, and as you can see in the datasheet, the CRI and CCT truly depends on the "Order Codes". For our first prototypes we (ugly green pictures) we requested samples with the highest lumens and therefore low CRI. We would love to have feedback from you, since we plan to start promoting the project again in the coming weeks. For those interested we will start a giveaway offer soon, we will inform in our newsletter after it is available. Thanks.

[JaredM]

For your spot beam emitter, I would highly recommend avoiding the XP-G3 all together. Almost anything else will provide a better angular color consistency and better spot intensity. Also, for the spot beam, consider the units of cd/W rather than lm/W. This will undoubtedly shuffle the ranking of efficient emitters.

Here is a great review by a member here showing the weaknesses of the G3 in a narrow spot optic.

Wuben TO46R & TO10R review (3x XP-G3, 18650/16340)

Disclaimer: The Wuben TO10R and TO46R were provided for testing by manufacturer free of charge. Manufacturer website: wubenlight.com [image] Wuben’s triple emitter TO10R and TO46R are almost identical besides some small UI differences (TO10R has ramping, TO46R has momentary turbo) and the battery they utilize. The larger TO46R has an 18650 while the TO10R uses a 16340/RCR123. Protected batteries are supplied with the lights and can be charged right in the flashlight via a Micro USB port. The…

If you are still looking for a reviewer, I recommend Maukka hands down. We all look forward to his amazing color tests…

[JaredM]

Also, I notice you now say you use UV emitters for the remote phosphors. It was previously mentioned they were Royal blue. Can you confirm and clarify this?

Also, what is the CRI rating of the remote phosphors setup?

[Pedro_Albaladejo]

WHITE XP-G3

We will check again with the hardware engineer about the white LEDs selection.

ROYAL BLUE

For the remote phosphor setup we use Royal Blue LEDs. The technical explanation at the end of the website mentions 'ultraviolet' for simplification; we will consider to review it to avoid any misunderstanding.

REMOTE PHOSPHORS SETUP

We have tested using domes from Chromalit and also from a local supplier here in Taiwan (I am Spanish but living in Taiwan). For our previous prototypes we used domes from the Taiwanese supplier, made of silicone and manufactured in a similar process to contact lens. And for the last prototypes we have used reworked domes from Chromalit, made of PC in a much basic manufacturing process. The results from the silicone domes were much better. Regarding the CRI we do not have the testing equipment in house and we are relying on the data reported by our suppliers. Both are reporting values between 80 to 90 depending on the color temperature of the dome.

REVIEWER

We have a few samples, so we could send one to Maukka. They are just prototypes but for a first review could be ok. The problem we may have is with the batteries shipping. For production we will use our supplier shipping license for lithium batteries, but for prototypes we can not ship them by flight. Where is Maukka located? We are a quite international team so we have batteries in US, Spain, Ireland and Taiwan.

[Tater_Tot]

I think maukka lives in Finland.

Sending the prototype to him would be nice in that he will make detailed measurement regarding the quality of the light.

Definitely want to see him review this torch.

[JaredM]

Pedro, contact him via PM if you are interested. I can’t speak on his behalf. All I know is that he is possibly the most respected reviewer when it comes to objective performance evaluation. Other members may offer more subjective commentary and field experience, so consider sending two or three lights for review.