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Knowledge Base > Electrical / Signal / Power

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5 Volt or 12 Volt - Which Should I Use For My Project?
A very common question we get at HolidayCoro is - which voltage should I use for my project. While there are often not many absolutes, this article works to cover many of the factors you should be con
DMX + Power over CAT5 System Details
Some of our products are built on a " DMX + Power over CAT5" system. This article explains about the system and why it may or may not be right for your display. There are cases where
DMX and LOR Protocols (Presentation)
DMX and LOR Protocols (2010 Lone Star Holidays Workshop)   This PowerPoint explains the differences between the LOR and the DMX protocols down to a packet level (advanced level content!)
DMX Wiring Cross Reference
HolidayCoro devices that use CAT5 wire for DMX signals (excluding E1.31 devices) are intended to be wired using pins 1 and 2 of CAT5 wiring (568B) for their RS485 DMX input signal. If you are using t
How big of a power supply will I need for RGB lights?
This article provides information that will assist you in selecting the correct power supply for your project using our RGB lights and/or DMX controllers. If you are not comfortable with this process
How many item / elements can I run over CAT5?
The DMX + Power over CAT5 system is an inexpensive and simple system but there are limits to what it can be used for.  This knowledge base article explains the limits of CAT5 cable as it relates
How much power do I need for LEDs/RGB Modules/Nodes/Strip/RGB Elements?
You can use any 12v power supply that will supply the correct amount of current with our RGB lights - you do not have to use our 12v waterproof power supply .   For some of our RGB product
How to build a RGB Power Injector
This video explains how to build a HolidayCoro power injector:
How to terminate an RS-485 CAT5 DMX line
Pixel Spacing Distances / How do Pixels Get Their Addresses?
First, lets start with a basic understanding of how pixels address pixels and then on to how this affects the spacing of pixels. While each pixel protocol/chip type (2811, 2801, 6803, 1804, etc) has a
Terminating DMX Lines and Connections (video)
This video shows, on a scope, what effect terminating resistors have on a RS-485 line carrying a DMX signal.