[♛ FreemeGB] Fireflies PL47 Gen II 4*XP-L/ Nichia/ SST20 Hi CRI 21700 Right Angle Flashlight - ENDED

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….
:wink:

Hmmm. Come to think of it, I think with the pl47 form factor maybe FF or somebody here can design a cable adapter and a headband of some sorts. One where you can screw in the head and the tube on the opposite ends of the cable. With headlamp mode the head is in your forehead and the battery at the back of your head (or helmet). I think this would make this a more balanced headlamp especially with a 21700 battery. And reading the BLF headlamp posts including diy headlamp projects it seems a lot of people (including myself) want this type of headlamp. They’re also quite expensive when buying from named brands and specialized (think caving) stores.