The DC-DC converter is a Maplin A79GW

The Brunton PV panel is a Brunton Solaris 26, here is a good review.

The main disadvantage of the Brunton Solaris is that it expensive and has quite a large surface area compared to mono-crystalline panels when folded out. It also needs to pegged out/guyed out using the corner grommets and bungy cords as it has a tendency to self fold back up.

The main advantage is the panel is lightweight and probably slightly more durable.

Overall the setup is probably a little too large and heavy for a lightweight BOB/GHB setup as other weighty items take priority, but for bicycle touring/bicycle bugout using a small trailer it should be a worthwhile addition for long term power for about 6 months of the year.