Xhp70 vs Xhp70.2
- Thread starter sarahze
- Start date
Help Support Candle Power Flashlight Forum
iamlucky13
Flashlight Enthusiast
- Joined
- Oct 11, 2016
- Messages
- 1,139
P2 is an output bin. It's the same regardless of the emitter type. However, it's only available in the XHP70.2. The older version tops out at N4.
XHP70 datasheet:
http://www.cree.com/led-components/media/documents/ds-XHP70.pdf
XHP70.2 datasheet:
http://www.cree.com/led-components/media/documents/ds-XHP702_1.pdf
From those, using the Easywhite 5000K 70 CRI data at 1050mA and 12V, the best XHP70 bin output is 1710 lumens (N4), versus 1830 lumens for the XHP70.2 (P2), so an extra 120 lumens or 7% output gain.
Because the latter also claims slightly less efficiency loss at the maximum 2400mA current, the outputs there should be about 3250 lumens and 3550 lumens. That's an extra 300 lumens or 9% gain.
Cree is also claiming a pretty significant reduction in forward voltage for the newer emitter - about 7% at max current. If true, then that combined with the increased output in that new bin means as much as a 17% improvement in efficacy for the best of the 70.2 line.
XHP70 datasheet:
http://www.cree.com/led-components/media/documents/ds-XHP70.pdf
XHP70.2 datasheet:
http://www.cree.com/led-components/media/documents/ds-XHP702_1.pdf
From those, using the Easywhite 5000K 70 CRI data at 1050mA and 12V, the best XHP70 bin output is 1710 lumens (N4), versus 1830 lumens for the XHP70.2 (P2), so an extra 120 lumens or 7% output gain.
Because the latter also claims slightly less efficiency loss at the maximum 2400mA current, the outputs there should be about 3250 lumens and 3550 lumens. That's an extra 300 lumens or 9% gain.
Cree is also claiming a pretty significant reduction in forward voltage for the newer emitter - about 7% at max current. If true, then that combined with the increased output in that new bin means as much as a 17% improvement in efficacy for the best of the 70.2 line.
MAD777
Flashlight Enthusiast
The 70.2 responds to modding much better than the old 70.
@vinhnguyen54 has pushed 25,000 ANSI lumens from 4 XHP70.2 in an Acebeam X45vn.
Here's mine....
@vinhnguyen54 has pushed 25,000 ANSI lumens from 4 XHP70.2 in an Acebeam X45vn.
Here's mine....
The 70.2 responds to modding much better than the old 70.
@vinhnguyen54 has pushed 25,000 ANSI lumens from 4 XHP70.2 in an Acebeam X45vn.
Here's mine....
But this X45vn is new driver with XHP70.2, not the stock driver..
MAD777
Flashlight Enthusiast
Yes, everything is modded.
I posted this to show what the 70.2 is capable of.
I have read this datasheets of xhp70 P2 bin and xhp70.2
P2 bin, They are same output "1830 lumen"...
but Xhp70.2 has p4 bin, 1965 lumen 7% gain.
is its correct?
sorry for my bad english
iamlucky13
Flashlight Enthusiast
- Joined
- Oct 11, 2016
- Messages
- 1,139
Correct.
Also, I apologize because I missed the tables (page 15 for XHP70 and 13 for XHP70.2) listing the bins. I was looking at different tables and saw one less bin for each, but the 7% gain is correct.
WaffleBuggy
Newly Enlightened
- Joined
- Apr 12, 2017
- Messages
- 14
??? My Eagletac MX30L3-r with a single N4 xhp70 is pushing 3893 ANSI lumens.
Vinh has noticed the xhp50.2 can be driven much harder while creating much less heat vs the xhp50. Hopefully the 70.2 also results in less heat. I'm kinda interested in seing what a 70.2 might be like in my MX30L3-r (lumens and beam pattern)
Vinh has noticed the xhp50.2 can be driven much harder while creating much less heat vs the xhp50. Hopefully the 70.2 also results in less heat. I'm kinda interested in seing what a 70.2 might be like in my MX30L3-r (lumens and beam pattern)
iamlucky13
Flashlight Enthusiast
- Joined
- Oct 11, 2016
- Messages
- 1,139
1710 lumens is at 1050 mA, while the LED is rated for a max of 2400 mA.
But it's max rating isn't necessarily the maximum it can take. It's the maximum Cree provides data for. Not having the ability to test them myself, I can't explore the limits like Eagletac might be able to.
But it's max rating isn't necessarily the maximum it can take. It's the maximum Cree provides data for. Not having the ability to test them myself, I can't explore the limits like Eagletac might be able to.
MAD777
Flashlight Enthusiast
Smaller donut is one of the benefits. There is some question of colors in the beam.
