Might be cheaper going that route, but, like the OG GT was when it was released, four 90.2s in one light would be ground breaking in and of itself. So I think the demand would be pretty high even with a higher price tag. I’m no billionaire but when the bug bites, you’re gonna buy.
I’m just wondering if the price difference between the xhp70.2 and the sbt90.2 will be worth it. From my understanding the sbt90.2 is around $50 per led. Both LED’s produce around 5k lumens. Will the sbt90.2 be that much better than a dedomed xhp70.2?
You pay for throw, which, if expressed in candela of the hotspot, is directly proportional to the die surface area. The SBT90.2 has a die size of 9mm2 and produces no darker center in the beam and XHP70.2 has a die size of 16mm2 (1.8 times bigger so at the same output 1.8 times less candela in your spot) and has a slightly darker center in the hotspot. The XHP70.2 can probably be driven to a bit higher lumens than the SBT90.2 but it will never get its throw.
Hey, it’s only 40A per carrier and 10A per 18650. It’s probably the spring loaded button on each carrier end that is the weak link.
If Lumintop is making the mcpcb they could also go 4S. So kinda like the 4S die of the 70.2, but instead of 9A they would need double, so about 18-20A.
Jason, when two carriers are stacked the carrier in contact with the driver has to move the full current load. Even in series there would need to be 20A running through that contact carrier, one spring under the positive plunger with 240 watts flowing through it. I have yet to see a carrier that can handle it. I have seen carriers fry the traces trying. Which is why I asked…
2 carriers that each carry 4 18650 cells. The carriers are in parallel while the cells are in series. So technically the second carrier is all about run time.