Hello Gerrit,
Yes, it is possible. 
We have received some suggestion from other member who said use XHP50.2 or XHP70.2 led. And I have transferred it to our engineers who said will test it. But due to Spring Festival is coming, the SP35 will be offered around March.
Thank you Tracy, we wait until March then. You have a great festival and I hope that the SP35 will get an XHP70.2 LED
I received a SF11 two days ago and already ordered another one!
Compact and powerful 4xAA soda can light. Best suited for outdoor with a throwy NW beam. Real moon mode plus four regulated brightness level up to 1100 lumen turbo. No lockout though. Great light if you don’t want to bother with Li-ion cells.
I love these big AA lights, because even if the NiMH AA cells are drained to 1V each, the output is still regulated.
…especially for less then 20 euro. When i consider the plastic built under performing AA/AAA lights being sold in stores around me for a similar price… the SF11 is a very good value light indeed. :+1:
Any reason I’m not able to purchase the SF11 via your aliexpress store currently?
Now is a great deal on Aliexpress - a flash deals. Only US $ 19.24. With a coupon, the price can be reduced by another $ 1. The price after discount is US $ 18.24.
Currently showing as $24.49 for me :(.
Flash deals ended. 
Just found this thread, please pm or post latest deal.
Whatever happened to the updated SP35?
I was hoping to buy updated SP35 during BRANDS SHOPPING WEEK on Aliexpress. Bought SF11 instead 
I’ve been looking at the SF13 to give to an elderly neighbor.
Anyone know if it has the switch problem like the SF11?
Sofirn, can you give me a code for a few SF13s, if they’re reliable?
Our amazon.us store don’t sell SF13 now. You can order it on www.sofirnlight.com website. SF13 link: https://sofirnlight.com/products/sofirn-sf13-aa-flashlight?_pos=1&_sid=101de1364&_ss=r