5000 lumens? Wow! That’s quite a powerhouse on your forehead. I hope all the mass in the head soaks up a lot of heat.
I’d bet that a few of my night mountain biking friends would appreciate that kind of power. They ride year-round. It would be great in the winter with the cold keeping the light from stepping down too quickly.
If you’re looking for a right angle light, this one looks to be top of the heap. Even without the HI leds, 2500 lumens is nothing to sneeze at.
I am interested too.
Interested
interested
Very interested. Anybody with experiece with the sst20 cri95? How does it compare to the 219b or 219c at 4000k?
Beam profile is throw-ish in optics. Broad but focused hotspot, very subtle cool band around edge of hotspot. Tint from factory will be slightly green from factory, but with a minus green filter it’s perfection. Deep red rendering is off the charts, better than 219B R9080. Even without the minus green filter, wood tones look great, but with a minus green filter, nothing does it better.
interested in this….
and this, except I’ll mount the solar panel on the underside of the brim so the PL47 can power it’s own cooling. :student:
Thanks. Might try those then. But I’ll probably also get one with 219b’s since I know I’d like it. Which minus green filter do you use? And would it be able to handle the heat from this light?
It’s the Lee Zircon 804. The Lee Zircon filters are designed to handle high heat from LEDs, so I think it should be fine. I haven’t had any fading issues yet.
Interested
Interested.
Interested.
Interested: sst20 cri95 or 219b or 219c at 4000k.
If an SST20 version is swapped out for XP-L HI’s would it then be close to 5000 lumens, or is there a limit set in the firmware for the SST’s?
Interested.
why not just order one of the XPL Hi versions - :http://www.ff-light.com/index.php?route=product/product&product_id=54&tracking=5b8428f176540
Strange choose of emitters.
The only floody version is very specific and unefficient 219B. 95+ cri or ~65 ,R9<<0.
BTW Is magnet removable?
Is driver dimensions known?
Interested.
It’s not going to stay at 5000 lumens for long. It’ll get too hot, and ramp down to keep itself from overheating. Even cold winter air is probably not enough to keep it at full power; it probably would need water cooling for that.
Also, I haven’t done thermal testing on it. I’m not sure yet how exactly it responds to full power, because the prototype I have uses a really thin MCPCB shelf. This was fixed in the production version, but I haven’t tested one of those. There’s also an issue with reflashing the driver while it’s still inside the host, so I don’t have a way to reflash an assembled light yet. So thermal response is currently unknown. It should drop to half power when hot, then use PID to regulate to a sustainable level.
Interested…of course…I really don’t have a use for it……
I’ll have to find one….
