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..

Oak Hills Lights 2022 Stats

This year, we had... 19,540 pixels (individual lights able to display millions of colors) consisting of: 11,860 LED pixel module "bulbs". 7680 LED pixels in 15 "P10" sign matrix panels. A projected matrix of 57,600 virtual pixels. Oak Hills Lights - Controllers 2022 We used 12 controllers (Tune-To sign controller is not shown above) and 12 differential receivers (remote controllers), running..

Arctic “Bomb Cyclone”

Most of North America has struggled late this week, just before Christmas, with record cold temperatures. Like much of the country, we saw rapid temperature drops, snow, and high winds as the storm line passed us. On Dec. 22nd, 2022 we went from 43℉ into the single digits in a matter of hours, and had..

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..