Well as you and wife undoubtedly know if you’re dissatisfied with the Costco lights just take them to any Costco Warehouse and you will get your money back instantly. I believe for as long 1 year after purchase and more in sum cases. Try that with sumthing shipped from China. :open_mouth:

The Dorcy/Amazon-generic 9 volt block lites have little to break on them. The polycarbonate plastic material is robust enuff to take pretty good abuse.

And as ya likely know 9 volt batteries are tuff as heck already by themselves plus they rarely leak as often as other alkaline sizes tend to do if left unremoved for longer periods.

The smallness of the 9volt block lites can be one big plus if you’re really trying to keep your emergency storage kits as small and light as possible. Weight here is negligible for either the Costco or the 9 volt lite.

Ya know watt? I’d get BOTH to try out. Then figure out watt quantity ratios of each is most suitable for the various ages and physical/mental abilities of your prospective end users.

You may very well end up with a mix of lights for different potential scenarios.

PS. Oops. Just realized yer referring to bikenber73’s Dorcy lights - his Post #7. Those should work great for your particular emergency applications. Tuff as nails I suspect plus they likely are great in rainy, muddy, conditions. No to little rust corrosion issues to ever worry about.