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Today, just about everyone owns a red beam laser pointer. Whether it has been used at work in conjunction with a PowerPoint presentation or to amuse yourself by teasing your cat or dog or, better yet, used to plant a red dot on your friend’s forehead, red beam lasers have been around for a while and contributed to many fun moments in the lives of otherwise sober techno-geeks and non-geeks as well.

But now the novelty of red-beamed laser pointers has worn off. They’re nothing new to see, and almost everyone has one. It’s a good chance that even your grandma, who has no idea what PowerPoint even is, has one. If you want to get the best technological toy out there, you’ve got to move to the next level.

Red lasers, as any good geek knows, use the boring old 650 nm wavelength. The cool new laser pointer that we’re going to tell you about uses the far more powerful 532 nm wavelength. And, best of all, that means it’s green.

Green laser pointers, being more powerful than red, can highlight things far, far away. Not just lecture slides across the room, or your friends’ kill zone, but clouds, low-flying aircraft, star constellations. You can even see them outside during the day.

In fact, if you use this laser outside and do happen to point it at an airplane, it’s so powerful you could get yourself put in jail. Yes, pointing a sighting device at a plane could get the feds coming to your house to investigate whether you are planning to point something more than a laser at planes. What little red pointer can get you in that much trouble?

And the green laser pointer doesn’t produce just a wee little spot. You can see the whole beam as it travels to the stars. Think Luke and his light saber. See the possibilities?

A green laser pointer is at a whole separate plane from the old-style red laser pointer. For a true green, a pointer needs a green direct injection laser diode. These diodes could be potentially dangerous if handled by the public at large, so they’re not even available wholesale. So this complicated process follows to keep hazardous material out of peoples’ hands. (And only the geeks in the room will understand a word of it.)

The green laser pointers you can buy on the market now are all using the very impressively named Diode Pumped Solid State Frequency Doubled technology, which gets shortened to DPSSFD, which is good for everyone. What this means is that an infrared laser diode pumps out 808 nm which is then altered to 1,064 nm which is then shot into a crystal that doubles the frequency to produce the green beam at 532 nm. (With frequency, smaller numbers mean stronger, but you knew that right? Only a geek actually read this paragraph.)

Needless to say, green laser pointers are the rave among the geek elite. They’ve been around since 2000, but not so easy to find outside of technical settings. They’re not cheap–you can pick up a red pointer for less than 10 bucks, and a green one will set you back 50 or so–but who can resist this little piece of geekdom? You know you want one. Yeah, you really need one.