Buck driver?
Appears to be. You can see the runtime graph on turbo at 3:36
I see stabilized output only.
What other driver gives stabilized output apart from a boost driver? Nothing else I’ve seen drops off like that. It behaves exactly the same as the L21B and M21E that both use buck drivers
Damn it, I’m still learning and thought the flat output like that meant boost or buck. Oh well, I’m not going to re-upload the video, but I will leave a comment.
I pulled the driver out and it’s not buck?
Thank you for bringing this to my attention
It is linear driver like in anothers Convoy lights. Also battery charger seems to be also linear charger with TP4056 ICs. Also M21E use boost driver not buck if it with XHP70.2. Also charger inside M21E is not linear I think.
Thank you for review. 
Thank you. I reviewed the SFT40 version of the M21E, so most likely got that wrong too. I’ll have to make sure I open them up first to confirm.
Always great to learn something new
Excellent review!
Thank you for the review, I wanted to buy the H1 but avoided due to the lack of regulated output - seeing the H2 has regulation is great. I’m going to buy one as soon as the store reopens after the CNY.
H1 now has regulated output as well. The driver was recently updated, shortly before H2’s release. I’m currently runtime testing one with a 219B SW35.
Interesting thanks, hope to see your review.
You shall!