Just got word that the new batch of WT90’s are available now:
$17.50 off code = WT90V6
The new version has reduced standby power and a new upgraded FET that should improve output a bit.
Howdy BLF!
So been out of the game for a bit now, this project was actually started way back in 2019 but covid caused it to be delayed until now. I have been working with a fairly new manufacture called WildTrail. They have been good to work with and seem to really care about making a quality light and not just being another light manufacture.
This light is one I saw several people request back when the GT/GT90 were released, a 3x 21700 power light with a bit smaller head.
This light has a 90mm reflector with an SBT90.2 LED and is powered by 3x 21700 cells.
Here is a video of some of the production process, neat to see it come together:
The end result is a much more portable light when compared to the GT but with a bit lower specs as the tradeoff naturally. My prototype testing has shown around:
Lumens: ~5000
Tint: 5700k
kcd: ~950Kcd
Throw: ~1950M
I could not get a good current reading due to being worried about breaking the prototype but seems to be in the low 20A’s which fits with the other specs.
Edit: TomE Did some tests on the prototype, his numbers are here:
He got a bit over 5k lumens and 975Kcd!
Another cool feature of this light is that the cell carrier has built in USB C charging AND battery bank at 2A for both! I did some testing on it and it seems to work really well. Voltage capped off on mine at 4.15V which is exactly what I would want for a built in charger, always better to error on the low side.
Thermal performance is quite good as well. Took about 6 mins for the body to reach 60c (a common thermal regulation setting).
At 15 mins it was still over 3k lumens and around 80c.
It peaked at 30 mins around 88c, so the light itself can be run until the batteries are dead without an issue. Although you do need to pay attention to what cells you are using, as they were a bit over 75c when I pulled them out, some cells are rated for 80c, others are lower.
Like all my lights though, it can have the thermal regulation disabled and run until the cells die without damage to the light.
The driver is running Narsil, same firmware as the GT90/GT70. It also includes the lexel pogo pin pads for flashing without having to remove the driver.
The only issue that will make it into the final light that I noticed was that they used some mosfets in the carrier as polarity protection. They work fine and do the job but they are fairly high resistance compered to what we are used to. This is what is holding it back from higher output. I am guessing with those replaced or bypassed it would be around ~4500 lumens or so, once I am done with the prototype I might try bypassing them and see what happens.
I am going to see if VOB is interested in doing a review of the prototype.
Ok, now for the group buy details.
There are 100 lights in the first batch, 75 black and 25 Clear / sliver.
The group buy price will be $150 + $15-$20 shipping.
They will be sold via Aliexpress and/or possibly direct paypal payments. The exact details are still in the works.
They hope to have them listed and ready for sale in about 2 weeks, they are in the final assembly steps now.