Welcome to Lunar Den Lights

Lunar Den Lights is a technical blog primarily covering RGB "Pixel"-based holiday light shows. It provides a backstage view of our current light show: Oak Hills Lights. You will also find some 3D printing information, as we use some 3D printed components in our light show, and that is one of my other hobbies. This..

Is 5v really dangerous?

Quick safety lecture... Pixel light shows like ours run on either 5v or 12v DC. Because this isn't "scary" mains AC voltage (110-120vac in the US), some folks don't think it is dangerous. Well, here is the thing: Electrical current is measured in Amps. An amp is an amp, regardless of the voltage. It takes..

Small Battles

First, sorry about the lack of build info this year. We've been very-very busy with life and just trying to get our show set up. I know at this point I owe everyone the completion of the Mega-Starburst. We expanded the Megatree and added a Mid/Maxitree as-well this year, otherwise not a lot of new..

DIY Differential Receivers

Earlier this year, due to ongoing supplier and freight issues, controllers and other components like differential receivers were hard to come by. There are still supplier issues as of this writing, but things are slowly getting better. Scott Hanson (computergeek1507) released his own controllers and other components in a DIY format. You can see all..

Technical Difficulties

Well, my Web server decided to croak again... It's funny how you need to keep everything updated for security, and then one of the updates breaks everything. Updates often break things in xLights and FPP as-well, so it's par for the course, really for any software. My only regret is I lost my DIY Differential..

Best laid plans…

Well, I did say our layout this year is subject to change. Unfortunately prices have gone up over 70% on pixels and pretty much everything else it takes to do a show like ours. Availability of hardware like controllers and other electronics has also been limited due to ongoing chip shortages. Don't even get me..