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
Best LED Modules for Outdoor Signs in UK Weather: a Selection Checklist
Choose LED modules for outdoor signs in UK rain, damp and changing temperatures. Compare IP ratings, connections, sign drainage, optics and power supplies before installation.
How to Test LED Modules Before Buying: A Channel Letter Sample Test Checklist
Compare LED modules in a real channel letter with a repeatable sample test, measured voltage, a uniformity checklist and a worked project-cost example.
Why Is My LED Strip Dim at the End? A Voltage-Drop Diagnosis Checklist
Diagnose a dim LED strip using under-load voltage checks, a worked cable-loss example and a practical choice between shorter branches and additional feeds.
Is IP45 Waterproof? A Site-Survey Checklist for LED Sign Power Supplies
Understand what IP45 means and assess rain paths, condensation, connections and cooling before choosing a power-supply location inside an outdoor sign.
Why Are My LED Channel Letters Uneven? A Practical Guide to Hotspots and Dark Patches
Diagnose hotspots and dark patches in illuminated channel letters. Check face material, module layout, depth and wiring before changing your LEDs.
How to Reduce the Real Cost of LED Sign Lighting Without Sacrificing the Finished Result
Compare the real cost of LED sign lighting, including module packs, labour, power supplies, energy and maintenance. Build a practical project cost sheet.
How to Test LED Sign Modules Before a Bulk Order: A Workshop Acceptance Checklist
Test LED modules in a representative sign before ordering in bulk. Document face uniformity, wiring, colour, fit and supplier evidence with a clear checklist.
160° and 170° LED Modules: How Wide-Beam Optics Help Reduce Hotspots
Learn how wide-beam LED modules can improve channel-letter and light-box uniformity, and compare Glowfy module output, optics and power requirements.
LED Modules for Light Box Signs: Layout, Power and GL 8018 vs GL 6018
Plan LED module lighting for light boxes with real-face testing, practical GL 8018 and GL 6018 selection, branch wiring and commissioning checks.
LED Lighting for Fret-Cut Signs: Using GL 8018 and GL 6018 Modules
Design illuminated fret-cut fascias with acrylic-backed apertures, targeted LED placement, GL 8018 and GL 6018 modules and practical sample testing.
Retrofitting an Illuminated Sign with LED Modules: GL 8018 and GL 6018
Assess an existing sign before an LED retrofit, compare GL 8018 and GL 6018 layouts, measure real energy use and plan safe installation and maintenance.
Glowfy XLG IP67 Power Supplies: 75W to 320W Selection Guide
Compare five XLG models, choose the right voltage and calculate sign load, current and cable distribution.
XLG 12V vs 24V LED Power Supplies: Which Voltage for Your Sign?
Match XLG voltage variants to LED modules and strips, with practical current and voltage-drop examples.
Installing an IP67 XLG Power Supply in an Outdoor Sign
Plan placement, protected connections, cooling and full-load tests for XLG supplies in UK signage.
Glowfy FSK Rainproof LED Power Supplies: 60W to 400W Selection Guide
Compare all five FSK 12V IP45 models and plan load, current, cable distribution, mounting and commissioning.
IP45 Rainproof vs IP67 Waterproof LED Power Supplies for Outdoor Signs
Understand enclosure ratings and assess real rain exposure, joints, ventilation and placement in UK signs.
GL 8018 PRIME LED Module: A Complete Guide for Channel Letters
A detailed guide to the 12V, 1.5W, 145lm GL 8018 module: layout, 160° optics, wiring, sample testing and maintenance.
GL 6018 PRIME LED Module: A Guide to Compact Channel Letters
Use the 12V, 1W, 90lm GL 6018 in tighter letter geometry with practical layout, wiring and IP65 installation checks.
GL 8018 vs GL 6018 LED Modules: Which Fits Your Sign?
Compare body size, published output, total watts and the real sample-letter test for choosing between PRIME modules.
LED Power Supply Installation Checklist for Sign Makers
Specify, position, wire and commission 12V or 24V sign power supplies with a practical installation checklist.
Philips 2835 LED Chips in Sign Modules: What Sign Makers Should Check
Understand Glowfy K2 PRO and K8 PRO chip claims, complete-module specifications, colour and workshop sample testing.
170° LED Module Beam Angle: Benefits and Limits in Illuminated Signs
Learn how a wide beam can improve face uniformity and how to test spacing, letter depth and hotspots.
Constant Voltage vs Constant Current LED Drivers: A Sign Maker’s Guide
Understand CV and CC drivers and avoid mismatching power supplies with sign modules and LED strips.
Can One LED Driver Power Multiple LED Strips?
Parallel branch wiring, load planning and voltage-drop checks for multiple strip runs.
TRIAC vs 0–10V vs DALI: Choosing the Right LED Dimming Method
Compare three dimming methods and check controller and driver compatibility.
How Many LED Strips Can One Power Supply Run?
Calculate the number of LED strip reels per power supply using watts per metre and current.
Which IP Rating Does an LED Driver Need for an Outdoor Sign?
Select an LED driver enclosure for dry, sheltered and directly exposed installations.
LED Module Calculator: How Many Modules Do I Need for a Sign?
Use the interactive calculator to estimate LED module quantity, connected wattage and power-supply capacity for channel letters and light boxes.
Why Choose 24V IP65 LED Strip for Outdoor Light Boxes and Fret-Cut Signs?
How Glowfy 24V IP65 LED strip delivers bright, wide and weather-resistant illumination for professionally installed outdoor light boxes and fret-cut signs.
How to Install LED Modules in Channel Letters: A Professional Step-by-Step Guide
A workshop guide to module layout, spacing, wiring, power-supply planning and face-uniformity testing for professional channel-letter installations.
LED Module Brand Comparison for Channel Letters: What UK Sign Makers Should Check
A practical framework for comparing LED module brands by brightness, optics, efficiency, warranty, compliance evidence and UK supplier support.
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 team is available Monday–Friday, 9:30am–6:30pm. Call, email or use our contact form.