Snow can be pretty glarey, i tend to run low power when nightriding in snow as you don’t generally need more and it gets you back some depth perception.
Riding when it’s actually snowing can be a problem too since the light will bounce back off the snowflakes. Which is quite nice, but if you’ve got a high powered light on your noggin is pretty irritating.
Vision 1 is kind of rubbish, unless it’s very cheap. Standard joystick is just rubbish frankly, it’s just a bad torch. There’s still an argument for buying higher end lights from quality manufacturers but the cheaper ones are generally pointless.
But that’s a kind of endless circuitous argument! I’d personally recommend the excellent Magicshine MJ-872, it’s just as good as a Hope R4 and far cheaper. Cheapest you can get a really good light for, unless there’s something newer and cooler.