Busch & Muller Cyo IQ Premium T Senso Plus Headlight for Hub Dynamos

I recommend this product

Tested on dark lanes and the beam gives plenty of width close to the bike and a central bright spot in the distance with a good fill in between. A few dark patches in the beam but overall very good.

I recommend this product

i have used the light on unlit country roads that have dangerous ditches and potholes and the illumination is as good as busch muller's own photos- the road is truly lit up in a consistent beam with no dark spots and you can set it to shine 30 metres or so in front and both sides of an average sized road are clearly visible. the beam horizon avoids dazzling drivers.it starts off bright but increases slightly if you go faster downhill but you won't blow the bulbs due to its overvoltage protection. the beam is better than b&m's non-premium version- imo spend a bit extra for this one it's worth it. it has a nice "standlight" feature which means the twin leds on the lower side of the lamp keep lit when stationery at traffic lights etc.very well made plus a stainless steel fixing bracket

I recommend this product

I replaced a cheaper B&M light with this as the cheaper light didn't really have enough lateral spread of light and not enough light full stop. Quick and easy to fit, wiring simple: the spade connections are quite tight but that has to be a good thing. It has a second set of terminals for a rear light.
I used it on a long two day from Edinburgh to London with lots of night riding and it gives a good safe spread of light. Once you get the inclination set it gives you enough distance vision to see what is up ahead and equally a good sense of the road surface immediately in front. The lateral spread is good too so in corners you are aware of the edges of the road. Thumbs up from me.