A commuter helmet that is unusual for one specific reason: Bern certify it to NTA 8776 as well as EN 1078, and very few helmets sold in the UK carry both.
EN 1078 is the ordinary European cycle helmet standard and is the floor rather than a feature. NTA 8776 is the Dutch speed-pedelec standard, tested at a higher impact speed, with more coverage at the temples and rear of the head. If you ride a faster assisted bike, or simply hold higher average speeds than you would on an unassisted bicycle, that is a meaningful difference rather than a marketing one.
*** IT IS STILL NOT A MOTORCYCLE HELMET. *** This is the trap worth spelling out. If your bike exceeds the EAPC limits, it is legally a moped, and a moped requires an approved motorcycle helmet. NTA 8776 does not satisfy that, however much tougher it is than a normal cycle helmet. See UK Road Legal (EAPC) for where that line sits.
Both Bern and the listing name MIPS directly. That matters because plenty of helmets describe a similar-sounding "rotational impact protection" without holding the MIPS licence. This one is the real thing: a low-friction layer that lets the shell rotate slightly against the head during an angled impact.
The Amazon listing describes the rear light as "Integrated LED Rear Light" and "BUILT-IN LIGHTING". Bern's own product page calls the same light a "rechargeable Click-Mount LED light" that "snaps in seamlessly".
Those are not the same claim. A light that snaps in is one you can lose, and one you can also charge without carrying the helmet to a socket. We have described it as detachable because that is what the manufacturer says, and where a listing and a manufacturer disagree we take the more conservative of the two.
We think the removable version is the better product anyway. It is simply not what the listing says you are buying.
13 vents, 370g, and a Compass Fit dial adjuster, in three sizes covering 52 to 62cm. The weight is on the higher side for a commuter helmet, which is the expected trade for the extra coverage that NTA 8776 requires.
One oddity: the listing's age range field reads "Teen". On an adult commuter helmet with this size range, that is almost certainly a mis-tagged field rather than anything about the product.