Thanks for the suggestion! The Acebeam T27 seems promising, although if the L21A can achieve a constant current regulation, I’d opt for that, given the price:output ratio.

The BLF A6 looks nice as well. Is it a different version of the Convoy S2+?

The Emisar D4S has a side switch. I prefer tail switch.

I’m not a Convoy fan, since I have only the C8+. I’m considering its models, because Convoy gets a lot of praise here.

Thanks for the input!