Portable solar power

[SecretPrepper]

Hello there,
I'm trying to update my BoB and I want to add a solar panel.
But I don't know much about them

I was going for 15-20W for decent real life application

I am looking at https://www.amazon.co.uk/gp/aw/d/B00M3Q7...X5V5M&vs=1

And
https://www.amazon.co.uk/gp/aw/d/B0107XL...PZ4O3&vs=1
But don't know which is better

Any help would be appreciated

[NorthernRaider]

When you are shopping try and find in the specs that they are monocrystaline panels they work better apparently in smaller panels, you can actually buy rucksacks with built in PV panels now which is more convenient but does rather put all your eggs in one basket, Some folks in the US use roll up PV panels as they can be stored easier ( they say)
http://www.ebay.co.uk/itm/like/131599007...ue&ff13=80

http://www.tomtop.com/65w-35l-travel-hik...wwod-qoBcw

These may be more to your liking
http://www.amazon.co.uk/dp/B00NTSSGOW/re...NEQCR98H42

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I have actually just ordered the last item for myself.

[SecretPrepper]

Thanks NR I'll check them out