Sometimes, on April Fools' Day, it's difficult to decipher the pranks from the truth online.

One such example came from online consumer electronics retailer Tiger Direct with an advertisement for the mini nuke Kube X15, the World's First Home Mini-Nuclear Generator, which could possibly be the best, or worst, April Fools' Day prank ever.

While Google opted for a more innocent prank with a version of maps designed for Nintendo, Tiger Direct went with a cruder joke in the form of a mini nuke, the Kube X15.

If you've been reading the online alternative press on the web, you've heard that this device actually exists, the ad read.

According to Tiger Direct, the Kube X15 is an amazing breakthrough designed by Rektor Siegle as a reactor than can generate 1000KHGz of power, endlessly.

Of course, this amazing breakthrough will disrupt markets around the world. Especially in the Middle East. Thus the secrecy of this message, the ad read.

The Kube X15 is advertised with the ability to power an entire city for 50 years about the size of Dayton, Ohio and is designed for personal use with small amounts of hybridized enough for home.

In the event of catastrophic failure of the device, you're only exposed to about as much radiation as you'd get sitting on the beach for 4 hours, Tiger Direct wrote. Now, the KUBE X-15 is undergoing federal approval and is expected to be available in the fall.

Tiger Direct said it will be the leading seller of the Kube X-15 thought it has not yet been approved by the United States Nuclear Regulatory Commissin (UNSRC).

[The USNRC] wouldn't even take our calls or return a damn e-mail! But we think they'd have no problem with the KUBE, the ad said.

The offensive part of the April Fools' Day prank from Tiger Direct?

This item cannot be sold outside the United States. Trade with Iran, North Korea, Cuba strictly prohibited, the ad read. Price of Plutonium may vary, based on world markets and political situations.

However, the Twitter community seemed to appreciate the prank from Tiger Direct.

Kube X15 Mini Nuke is too good to be true. April's fool, wrote Twitter user gatmeister.

Thanks, TigerDirect. Your obviously fake KUBE X15 reminded me it's April Fools Day. Now I won't be fooled by more subtle pranks, Twitter user brousch wrote.

UPDATE: (4/2/12 12:50 p.m.)

Users that inquired about the Kube X15 Mini Nuke were sent the following email from Tiger Direct.

April Fools'! This is not a real product and it is not pending approval from the Nuclear Regulatory Commission. We're sorry if you were fooled, but it was all in good fun and we hope you enjoyed our little prank.

We'd love to hear what you think? Tell us on Facebook, Twitter or Google+. #KUBEX15 You could also leave a note on the Official KUBE X15 page.

We'd love it even more if you kept this a secret and shared with your friends. Join in on the hoax and see if we can get the world to know about the KUBE X15! It's all in good fun.