Cree SC5 platform, XHP LED's

[clemence]

Well, I guess so too. It should be straight forward just use less solder at the anode and cathode. I never use anything other than Sinkpad or Noctigon theses days. I'd rather make my own direct copper MCPCB than to use the dielectric MCPCB.

 

[Joys_R_us]

I do not understand why CREE says "at similar watts per lumen" compared with XM-L2 and the table here shows 123 vs 81/109 lumens per watt ???

 

[clemence]

I do not understand why CREE says "at similar watts per lumen" compared with XM-L2 and the table here shows 123 vs 81/109 lumens per watt ???

Well, it's better than before right? I'll complain if it's the opposite

 

[Joys_R_us]

I don't complain, I just don't understand. A company with a better product (sometimes even without) would use it as a marketing argument...unless I am overseeing something in the technicalities and the new LED is not more efficient.

 

[clemence]

I don't complain, I just don't understand. A company with a better product (sometimes even without) would use it as a marketing argument...unless I am overseeing something in the technicalities and the new LED is not more efficient.

Yes, somehow I feel it too. Why they don't use this advantage to their marketing. I remember the last time they use 85C as their new binning standard temperature (started when they launch XT-E if my memory serves me right). During that time the XT-E reaches 139 lumen per watt at 85C when the top XP-G was only 139 lumen per watt at 25C. And they didn't really boast it that much.

 

[degarb]

Why doesn't the chart show sub 700 ma for the xhp 6V?

 

[RoGuE_StreaK]

Just got an email from Sinkpad saying they're making direct-to-copper (or -aluminium) boards for both the XHP50 and XHP70. No idea on price or availability.

 

[vestureofblood]

Sinkpad is in fact making boards for both the XHP 50 and 70. I have some samples on the way and intend to stock the 70 size boards. The rep from sinkpad I spoke with says that the 6 volt 50 size emitters will work with XML sinkpads, but the 12V will NOT hence they are making a special board for it


If any one is interested LCK-LED is NOW SHIPPING the XHP70. Its not a top bin though IIRC it was like one down from the top I think.
I can't swear to it, but I believe this emitter will also work on an MK-R mcpcb.

Cutter Electronics is also showing the XHP70 on a copper star IN STOCK in the N4 bin.

 

[clemence]

Sinkpad is in fact making boards for both the XHP 50 and 70. I have some samples on the way and intend to stock the 70 size boards. The rep from sinkpad I spoke with says that the 6 volt 50 size emitters will work with XML sinkpads, but the 12V will NOT hence they are making a special board for itIf any one is interested LCK-LED is NOW SHIPPING the XHP70. Its not a top bin though IIRC it was like one down from the top I think. I can't swear to it, but I believe this emitter will also work on an MK-R mcpcb.Cutter Electronics is also showing the XHP70 on a copper star IN STOCK in the N4 bin.

It's good that my unused XML sinkpads are not wasted. Matt, thx the shipment has arrived faster than I thought. I need to order 50-100pcs XP 10mm and several (dunno yet, probably 20ish pcs) 16mm XM next month. Do you think you'll have them?

 

[vestureofblood]

Yes, I think I will. I hope to reorder sinkpads in February, I just have to wait until I pay another large bill for some CNC work I am having done first

 

[marc.collin]

for the XHP70,

Size (mm x mm)	7.0 x 7.0
Product options	6-V, 12-V, high-CRI
Maximum drive current (A)	4.8 (6-V), 2.4 (12-V)
Maximum power (W)	32
Light output	Up to 4022 lm @ 32 W
Typical forward voltage (V)	5.8 @ 2100 mA (6-V), 11.6 @ 1050 mA (12-V)
Viewing angle (degrees)	120
Binning	85°C, ANSI White, 2-, 3- & 5-Step EasyWhite®
Thermal resistance (°C/W)	0.9
Reflow-solderable	Yes – JEDEC J-STD-020C-compatible
RoHS and REACH-compliant	Yes
UL-recognized component	Yes – Level 4 Enclosure Consideration

is there any advantage to run it at 6v instead of 12v?

both will use anyway 28Wh (4.8 * 6)

with a 22650 battery like a keep power 5200mhA 3.7 v(normal) max 4.2 max volt, we get 19wh (3.7 x 5200), so we more then one.

my calculation is ok?

what driver can support it?

 

[Jakefreese]

for the XHP70,

Size (mm x mm)	7.0 x 7.0
Product options	6-V, 12-V, high-CRI
Maximum drive current (A)	4.8 (6-V), 2.4 (12-V)
Maximum power (W)	32
Light output	Up to 4022 lm @ 32 W
Typical forward voltage (V)	5.8 @ 2100 mA (6-V), 11.6 @ 1050 mA (12-V)
Viewing angle (degrees)	120
Binning	85°C, ANSI White, 2-, 3- & 5-Step EasyWhite®
Thermal resistance (°C/W)	0.9
Reflow-solderable	Yes – JEDEC J-STD-020C-compatible
RoHS and REACH-compliant	Yes
UL-recognized component	Yes – Level 4 Enclosure Consideration

is there any advantage to run it at 6v instead of 12v?

both will use anyway 28Wh (4.8 * 6)

with a 22650 battery like a keep power 5200mhA 3.7 v(normal) max 4.2 max volt, we get 19wh (3.7 x 5200), so we more then one.

my calculation is ok?

what driver can support it?

I can't wait to get some of them. I think they will be better to work with than some of the high lumen cob due to the lower Vf. I would look into the Texas instruments driver solutions, I'll look tonight if I get a chance.

 

[marc.collin]

I can't wait to get some of them. I think they will be better to work with than some of the high lumen cob due to the lower Vf. I would look into the Texas instruments driver solutions, I'll look tonight if I get a chance.

if i take this del

LCOB50-30W030XXER80-0960​

from cob​

​

it's power it's 30w,

960ma, and it's vf it's ​

30V-34V​

http://www.cob-led.com/ceramic-cob-led-module/High-CRI-LCOB50-30W030XXER80-0960.pdf

vf is higher then xph

 

[Mr. Tone]

vinhnguyen54 has modded a light with the XHP70 now. http://www.candlepowerforums.com/vb/showthread.php?397180-Got-XHP70

I am looking forward to seeing more lights with this, particularly with flood type beams.

 

[jason 77]

Anyone know where I can buy the xhp50 and xhp70 that is closer to the USA, I really don't want to pay more for shipping than the leds are gonna cost from places like cutter and lck-led?

 

[jason 77]

I'll answer my own question, mouser has some of both the xph50 and xph70 bare LEDs, the ones I bought are on order so we will see how long it takes for me to get them. Mountain Electronics has what look like really nice MCPCB for both LEDs. I will post pics once I receive them.

 

[jason 77]

Well the sinkpad MCPCB's arrived already! They look nice, just waiting on the actual LEDs to get here now...

 

[thijsco19]

If you happen to come across this combination at some point, please let us know in this thread.

I've mod a convoy L5 host with a XHP50 led. It has a smooth reflector and yes there is still a 'dark spot' in the middle of the hot spot.
I'm not sure if that's because I couldn't focus the led properly or because it's just the quad die layout itself.

 

[easilyled]

I've mod a convoy L5 host with a XHP50 led. It has a smooth reflector and yes there is still a 'dark spot' in the middle of the hot spot.
I'm not sure if that's because I couldn't focus the led properly or because it's just the quad die layout itself.

Thanks for the feedback. I guess that we'll have to wait for further lights using these emitters to be able to draw firm conclusions but your results are interesting.

 

[thijsco19]

Here's a beamshot I took couple days back, pointing at the ceiling from about 1.5meters away.
It's my first beamshot so I'd took it with the auto setting on the camera.

It's a XHP50 mounted in a Convoy L5 host with a smooth reflector.
As you can see, there is a dark spot in the middle of the hotspot. In real life you can see it better and if I hold the light further away the dark spot becomes more visible.