ENS Subdomains

Earlier this year I wrote a blog post about Web3 identity.  At the time I touched on ENS, but didn't really dive into it much.

I finally decided to register my own ENS name, and one of the features I found pretty cool was the ability to create subdomains.  So let's say you register "example.eth" as your domain.  You could create a subdomain (in the format subdomain.example.eth).  You don't have to pay another registration fee, just a little gas.  You can even assign ownership of a subdomain to another person.

So why would you do this?  Here are a few reasons

• You can make a .eth subdomain specific to a project ( blokpax.example.eth )
• You can make a .eth subdomain specific to your Discord ID
• You can make a .eth subdomain for friends/family
• You can make a .eth subdomain for each wallet/purpose ( freemint.example.eth, vault.example.eth )
• Each domain can have a different address and even different controller.

If you already have an ENS domain, you can create a subdomain by doing the following:

1. Go to ( https://app.ens.domains/ )
2. Click "My Account" top right
3. Under either "Registrant" or "Controller" find the domain you want to add a subdomain to and click it.
4. Click "Subdomains" and click "Add Subdomain"
5. Put in the name you want and click "Save"
6. Pay the gas and that is basically it.  You can now manage the subdomain like your main eth domain.

One heads up / warning.  If you get a subdomain from someone else (person or project) just keep in mind they have the ability to take the domain back.

I hope this information is useful!  I will revise/add info if I get any questions.

ZeroLemon SolarJuice Solar Charger 6000mAh USB Power Bank Review ( Model SJ-6000 )

Disclosure of Material Connection: I received this product for free so that I could provide product feedback to the company and post a product review. I was not required to write a positive review and I do not rate products higher than they should have been. I am disclosing this in accordance with the Federal Trade Commission's requirements.

I recently received a ZeroLemon SolarJuice Solar Charger 6000mAh USB Power Bank (Model SJ-6000) for a product review. In addition to the battery pack itself, a USB to microUSB cable was included.

Cable and charger

The powerbank is rated to handle an output of 2.1A, so I use a 2A load and a USB tester to confirm it was working.  The fully charged battery put out 3530 mAh which is just under 60% of the 6000 mAh listed.  Based on tests I have been doing with battery packs, they were between 53% and 65% so this powerbank was basically in the middle of that range.

Size comparison - next to a business card

The instruction manual states that the solar panel can support 100 mA ( or 0.1A ), which means it would (in theory) take 60 hours to fully charge the 6000 mAh pack.  From a usage point of view, you will not be able to fully charge this powerbank only using solar power if you plan to actually use it on a weekly basis.  If this is a minimal use or emergency use only type of powerbank, then the solar panel could do a good job of keeping it topped off assuming you can keep it in a location with sunlight (but not where it will get too hot).  The solar panel also gives that “geek factor” which makes it good for gifts.

For real world tests, I was able to charge my Nexus 7 without any problems.  It did take a small drop onto the ground without any visible damage, and seems sturdy but don’t forget to protect the solar panel if you are going to pack this in a backpack or luggage just in case.

Back of unit

Close-up of front

Here are the main points I noticed about this product:

Specs: The 2.1A rated output is good for power hungry devices, and the capacity should let you charge your phone more than once.

Ease of Use: Charging the battery pack is pretty simple (just plug it in) and charging other devices is just as simple.  If you have other similar battery packs and don’t read the directions, you may be surprised that you have to hold the power button down longer than just a quick press.  This shouldn't’ be an issue, I always suggest reading the manual first.

Other Factors: Of course the solar panel is just neat, and depending on your situation it may actually be very useful.  One other thing I noticed - this product comes with a 36 month warranty, which I believe is longer than I have seen with any similar battery pack.

Bottom line: If you are looking for a solid, slightly geeky, USB battery pack with a long warranty this is a great option to consider.

ZeroLemon Product Page: http://zerolemon.com/product/zerolemon-solarjuice-6000mah-solar-charge-external-battery-backup-charger-with-total-3a-output-dual-usb-output/
Amazon Product Page: http://amzn.com/B00NIOGKLS