Picked up a Petzl at Tiso before the sales, already reduced to a tenner. Just a basic model, but I actually think this morning, the first ride with it, the use was proved as someone reversed out of their drive with high walls either side, but I was able to look at them over the wall...
I think, given I've got a couple of Walz caps, I might convert one to the winter headtorch cap and get the old needle and thread out, rather than relying on the stretchy band. But I'm pretty impressed.