New VirEnce MCPCB for E17/E21/119/144/233U

UPDATE 180706:

New variants, VR21SP4 (quadtrix E21A) and VR21P4 (quad Optisolis/757). Same board material and technology as previous one.

News here: [GB ended,discussion only] CRI > 80+ NICHIA 2000K-6500K [E21A/219B/219C/319A/144A/757GT-F1(Optisolis)] - #1419 by clemence

- Clemence

New Products:

VR21P4 (parallel only, 757/Optisolis only)

- The closest performance to DTP copper MCPCB.

- 1 Oz copper

- Diameter = 21mm

- Thickness = 1,5mm

- Compatible with Carclo 106xx

- Almost invisible (from afar and when lit) yellow marking for enhanced aesthetic

  • Special solder footprint dimensions for precise LED positioning. Very easy to solder with DIY techniques. No more overflow solder - bumps which can impede optic placement.

NOTE:
Ignore those erroneous guide boxes, they won’t affect the board/soldering performance. The LEDs self align perfectly.
This board is sure overkill for 757 LED family, the board thermal resistance is much lower than the LED thermal resistance itself. But with some scrapings here and there this board can be used for other high power (2 pads) LEDs as well.

NF2L757GT-F1 sm273 P9 Rfh00


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VR21SP4 (larger version of VR16SP4)

New features:

- The closest performance to DTP copper MCPCB

- 1 Oz. copper

- Tighter LEDs spacings at 0,3mm

- Smooth backside

- 2,5mm holes can be tapped for M3x0,5 screws for alternate mounting options with thin heat sink plate.

- Diameter = 21mm

- Thickness = 2mm

  • Almost invisible (from afar and when lit) yellow marking for enhanced aesthetic

Still waiting for the optics for further tests….

- Clemence

A quick test with VR21SP4: good news, with proper optics it can be used as a thrower. Not as throwy but decent at 8 - 10 degree hot spot (estimated).
Tested with Armytek Viking OP reflector, 37mm, and 45mm colour mixing TIR optics. Will post the beamshots if I have the time between soldering the 219B GB orders.

- Clemence

I will put mine in the Convoy L6 (medium to large size OP reflector) and will report back how that works. Iight convert the light to use the new Gaggaione 67mm silicone TIR optics.

The optics used were 45mm Gaggione LLC49R and Yajiamei 37mm. The reflector was from newest Armytek Viking. All resulted in good beams, little to no artefacts.
E21A on VR21SP4 can’t be driven as hard as the VR16SP4 because of the smaller gaps. 2A/LED seems near the limit for R9080 and 2,5A/LED for R70.

- Clemence

Why did you make the gap smaller again?

Popular demand to make it easier with optics.

- Clemence

Finally had a little time for quick testing the VR21SP4 with some optics I laying around.

4x E21A sm403 D220 R9080

The contestant:





So, quadtrix E21A boards (VR16SP4 & VR21SP4) are not that hopeless for medium range thrower. To get rid off the center cross there are several options:

- Add diffuser or diffuse the optics used (including texturized the reflector when possible)

- Use colour mixing optics (OP reflector, special TIR with multi facet/pebbled surface)

  • Alter the focal point to below the MCPCB surface.

Hope this helps

- Clemence

I am a bit surprized that you gave this higher priority than a regular quad, for quad carclo

Quad config is not as good as quadtrix config for colour mixing. I prepared all these boards for the CCT switching lights and for the upcoming colour E17A (I hope E21A as well).

- Clemence

Thanks Clemence!

That first pic looks so perfectly soldered and just clean! :+1:

I borrowed your order for the pic and beam shots. I always test all soldered LED orders at 100% rated current for 1 minutes each.

- Clemence

Did you measure the lumens?

No, because I don’t have the right equipment to do so. You can use Texas_Ace measurement for comparison figure.

- Clemence

- Clemence

NOTE:
Actual stock Carclo 10622 beam was so much uglier with blue hot spot. While on the other hand the frosted 10622 (yes I frosted it myself) was so much better with no red band at all. My camera limited dynamic range can’t reproduce the actual looks.

- Clemence

Blu hotspot with optisolis? What is the cct on that and is the tint as red pink as E21A?

Blue-green hot spot to be exact. This Optisolis can only be used in medium to flood setup. TIR still very useful to direct the beam out front and make the transition smoother than no optic at all (mule). Tint is very neutral IMHO. My guess it’s not far from BBL. You’ll see Maukka’s test result soon, his sample already OTW.

- Clemence

So far, the Optisolis doesn’t seem as enticing compared to the E21A, but I’ll wait for Maukka’s test.

Indeed, Optisolis is not easy to implement in flashlight world unless very specialized optics used. In my opinion E21A still the best when very high CRI LED for flashlight is needed.

- Clemence