Ebike Stzvo or Led mr16s with 10degree beam: main beam?

[SA_SA_SA]

[...

Thanks

[Brucey]

......[In the photo of the actual packaging, that itself says 80lux, so 80lumens is presumably a Amazon typo.

in which case it may well be a proper bargain. If it has room for a simple bridge rectifier inside, I'd expect to be able to drive it with pretty much any dynamo

[rjb]

More lights here from PSW power. Anyone tried these.
"Front 6V-48V 1.8W DC light for bafang BBSHD BBS02B BBS01B TSDZ2 mid drive motor kit" https://www.pswpower.com/products/front ... or-kit-168

[Brucey]

so next time someone asks me if e-bikes are any good at anything I'll be able to say 'yes, they are very good for making lighting affordable'?

[edocaster]

More lights here from PSW power. Anyone tried these.
"Front 6V-48V 1.8W DC light for bafang BBSHD BBS02B BBS01B TSDZ2 mid drive motor kit" https://www.pswpower.com/products/front ... or-kit-168

Incredible prices. Ironically, the cheapest ones (the QD236) may be better as they at least have lux ratings (30), and are 2.4W rather than 1.8W. The QD197 looks very odd, like the reflector is upside down.

The 80 lux M-Wave one SA_SA_SA listed I've seen under various brands in multiple places. It looks very much like a B&M Ixon IQ-XS.

[SA_SA_SA]

I wonder if 6V compatible E bike lights driven by something like a device such as a (6V+ capable) https://adeptelectronics.co.uk/velocharger/ variant, would give less flicker at low speed than LED Dynamo lamps due to the device being optimised for more constant power to the unit under charge?

[rjb]

I would expect less flicker. But if it did you could make a tiny battery pack from a pair of vape batteries and rectify the supply.
Like I did in my post here. No flicker and they stay lit for hours when stationary. no problem so far with the batteries.

Even just a single diode in series with the batteries may be sufficient. Anyone tried this. ? The battery would be discharging through the lights and the dynamo when stationary. Any thoughts.

viewtopic.php?t=159102

[Brucey]

.......Even just a single diode in series with the batteries may be sufficient.....

eh?

[rjb]

.......Even just a single diode in series with the batteries may be sufficient.....

eh?

This what I meant. The switch would only be opened when the lights weren't needed eg after putting the bike away.

[Brucey]

I'm no electronics expert, but as drawn surely your batteries would only ever be able to charge, not discharge?

[edocaster]

Whatever the wisdom of a particular battery scheme, going back to the Velocharger SA_SA_SA linked to, it would work for a light. But aside from being more complex and expensive than necessary it would need a stand light. There's no guarantee it will enter 'charging' mode the moment you set off, so you may end up with no light for several seconds.

[edocaster]

Revisiting this topic as it seems like commercial options (for Stvzo lights with switchable high beams) are still problematic. E.g. I note Busch & Muller have rather poor reviews for the IQ-XM Speed: https://www.bikeradar.com/reviews/acces ... ght-review - and some users mention a recall: https://www.rosebikes.com/b-m-iq-xm-spe ... on-2705644 (interestingly the e-bike version without multiple power levels seems far less expensive: https://www.rosebikes.com/b-m-lumotec-i ... e=Standard).

How hard can it be for them to make this well?