Professional technical library
Glowfy Knowledge Centre
In-depth technical guides written for UK sign makers, shopfitters and commercial LED installers. Every article is grounded in real installation experience — covering specification, wiring, troubleshooting and best practice across all professional LED applications.
Latest article
Wiring LED Strips: Voltage Drop and Power Injection Explained
Why LED strips go dim at the far end, how to calculate voltage drop, when to use power injection, and how to wire long runs correctly.
IP Rating Explained: IP65, IP67 and IP68 for Outdoor LED Signage
What IP65, IP67 and IP68 actually mean, how they are tested, and which rating you need for channel letters and exposed outdoor LED installations.
How to Choose the Right LED Module for Channel Letter Signs
Wattage, colour temperature, IP rating and module spacing — everything you need to specify LED modules for illuminated channel letter signage.
COB vs SMD LEDs: a Professional Specification Comparison
Side-by-side comparison of COB and SMD LED technology — output, efficiency, heat management and the right choice for each application.
How to Calculate the Correct Power Supply Size for LED Signs
Step-by-step method to calculate total LED wattage, apply the 20% headroom rule, and select the right constant voltage power supply for channel letters and LED sign projects.
Outdoor LED Installation: Weatherproofing Best Practices
Professional techniques for sealing, mounting and maintaining outdoor LED installations to maximise longevity in UK conditions.
Warm White vs Cool White LED Modules for Professional Signage
How to choose the right colour temperature for every sign-making application. Covers the full 2700K–6500K Kelvin scale, 15 real-world sector recommendations, UK climate considerations, and why mixing colour temperatures ruins a sign.
LED Strip Lighting for Shopfitters: a Practical Guide
Specification, layout and installation guide for retail display lighting using LED strips in shelving, coves and vitrines.
COB LED Strip Lighting: Installation and Dimming Guide
Getting the best from COB LED strips — optimal mounting, heatsinking, compatible dimmers and controller options.
Troubleshooting Flicker in LED Installations
Common causes of LED flicker and systematic steps to diagnose and fix compatibility issues between drivers, dimmers and LEDs.
Working with 24V vs 12V LED Systems: When to Use Which
Comparing 12V and 24V LED systems for different applications, run lengths and efficiency requirements.
Applying for a Glowfy Trade Account: What to Expect
Step-by-step walkthrough of the trade account application process, approval timeline and the benefits available to verified trade customers.
Can't find what you need?
Our technical team is available Monday–Friday, 8:30am–5:30pm. Call, email or use our contact form.