2xAA driver?

buck91 · 2019-12-09T04:35:43.000Z

So I found my old Dereelight Javelin 2xAA P60 host and I figure I should build it. I really only see two options out there, both on Fasttech. One is a 5-mode 800ma driver the other is a single mode 500-800ma driver. Are there any other viable options? Initially I was going to yuji an old P60 but all of my old spares look brand new. Hate to gut a brand new bulb… I’d like to build something very simple with a low mode and a high mode, no memory. In a perfect world I’d like to pull 1C from a pair of eneloops on high but given the lack of options I’m sure I won’t get that lucky…

Lightbringer · 2019-12-09T04:42:05.000Z

I like that 1-mode 800mA driver. Works nicely with 2×AA. (Less current with 1×AA.)

buck91 · 2019-12-09T04:44:33.000Z

Lightbringer:

I like that 1-mode 800mA driver. Works nicely with 2×AA. (Less current with 1×AA.)

I’ll probably try it, just want to be more versatile. Any thoughts on best moderate to high CRI LED for 800ma drive current?

Lightbringer · 2019-12-09T04:51:39.000Z

’351, ’219B, unno.

moderator007 · 2019-12-09T05:10:03.000Z

I like the 4000k LH351D 90 cri for its high output and decent beam color.
The 5000k is decent also. Retains lots of output with high cri.
KD has a few boost drivers, here’s a 17mm http://kaidomain.com/S024883-17mm-0_9V-3_6V-3-Mode-Boost-Driver-Circuit-Board?

BattleBrat · 2020-03-23T05:47:35.000Z

moderator007:

I like the 4000k LH351D 90 cri for its high output and decent beam color.
The 5000k is decent also. Retains lots of output with high cri.
KD has a few boost drivers, here’s a 17mm http://kaidomain.com/S024883-17mm-0_9V-3_6V-3-Mode-Boost-Driver-Circuit-Board?

Interesting, I just picked up a Malkoff MDC 2AA body and VME head and I need someone to build a custom P60 dropin for it. I couldn’t really find a driver, do you know any users capable of building a P60 with a 2AA friendly Top quality (the Malkoff body and head weren’t cheap, need top quality components) driver?

moderator007 · 2020-03-23T06:27:27.000Z

I wouldn’t exactly call them a quality boost driver, they are a decent boost driver in my opinion.
I mentioned a few more in this thread. Recommend me a 0.9-4.2V driver - #7 by moderator007
Try making a new thread asking for a modder to mod your light. They may even have something in mind that would work even better.

BattleBrat · 2020-03-23T07:01:25.000Z

Thank you!

Marc_E · 2020-03-23T11:55:51.000Z

I have one of these in a single AA light that works on a 3v lithium battery:

http://kaidomain.com/Flashlight-DIY-and-Tools/Circuit-Board-Driver-Board/S025059-CF-17mm-0_9V-3_3V-4-Groups-2-to-5-Mode-Boost-Driver-Circuit-Board

It’s not brilliant but is ok and does have fast-ish PWM (when i first got it i thought it didn’t have PWM but started noticing it in reflections) and i haven’t used it that much so can’t comment on longevity, but it is the best option i’ve been able to find, has a couple of group options, and is much better than the slow-pwm, badly spaced drivers you’d normally get in AA lights so definitely worth a look.

I did have a problem with the driver but it looked to be under a very specific circumstance which shouldn’t happen in normal operation.
Mentioned in this thread:

Has anyone used this AA boost driver? Flashlight Modding and DIY Parts

I’ve been messing around with my Thorfire TG06. Right now I have a guppydrv driver in it from mtn, but I’m interested in trying an AA compatible driver as well. The original driver always starts on high, I’d rather it start on low, so that’s why I started screwing around with replacing the driver in the first place. I also want to get a convoy T2 to mod since the stock driver looks pretty bad. https://www.aliexpress.com/item/CF-17mm-0-9V-3-3V-4-Groups-2-to-5-Mode-Boost-Driver-Circuit-Board/327…