Kinda disappointed to see the extreme price premium for the B35 options (and XHP35 HI to a lesser extent given the more expensive emitter). I donât see that sort of bump in cost for switching drivers from competing brands, and unless this is a new design it doesnât really knock it out of the park in terms of efficiency.
LuxWad - agree with everyone: your videos are fantastic and you now have a new subscriber, the informative yet relaxed (and honest) reviews are spot on
I have around 20pcs of B35AM and AR and they can sustain 1000lm without a sweat. Better find one and try so youâll see how underpowered looks this initail videoâŚ
Hank's rating is 1400 lumens with the B35AM. Video shows 3.6 amps from a boost driver for a 6V LED, looks like 1650 at start, so maybe ~1500 at 30 secs. The light is 120 mm long, 40 mm head - nothing at all very big, think of it as a BLF/Eagle X6 but little shorter, or an Astrolux EC01 but slightly larger head diameter.
My immediate question is why limited to 3.6 A? Can the driver take 4 amps?
In my builds B35Am at 6V/4A turns a lot rosier than realy is so itâs on a max driving limit. Sosetting it on 3.6A is very good idea. Only stepdown is a minus
Cool! Sounds like the R&D has already been done on these LED's. Not clear from Hank's listing, but looks like the output binning varies based on the tint - lower tint, lower output. E700, E800, E900, E1200 shown in the store listing https://www.eurekatronix.com/product-page/nichia-b35ax?
So the 3500K is E700, 4000K is E800, 5000K is E900, etc.
Page 4 has the lumens outputs at 1.4 amps. Hhmm, might have to re-consider 3500K. 4000K jumps up to the next output bin, roughly 200 lumens more I'm guessing for 3.6 amps.
Sounds good to me. I typically use lights like this for walking the trails at night, and I usually stick between 5-20 lumens. Just enough to see down the trail without ruining my night vision.
My current go-to is a D80v2 with 219b and a 2A max regulated driver. The B35AM 3500K will probably more than double the max output of my D80v2.
Kaidomain. I wouldnât exactly call their $24 XHP35 C8 a serious competitor to the DM11 though.
I think a better question is what does compete with the DM11/B35A? Perhaps the Acebeam E70/FC40? Thatâs the same price. The Zebralight SC700d? Thatâs considerably more expensive.
âthe light was calibrated but I did not adjust the thermal limitâ - direct quote from the video
He did calibrate the temperature sensor. He just didnât change the max temperature it can reach before stepping down. Those are two different settings.
I think this is the most relevant way to do a runtime test, since 45C is both the stock thermal setting, and a reasonable temperature to still be able to hold onto the light without gloves.