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LED Lighting Knowledge Centre

14 guides covering the questions buyers send us before they place an order - lamp bases, lumens, colour temperature, chip types, waterproof ratings, control systems, beam angles and export compliance.

Buying GuideComparisonCompliance GuideComponent GuideDesign GuideInstallation GuideMaterial Guide
9W LED Globe Bulb E27 from C&R Group

How To Choose The Right LED Lamp Base For Your Market

E27, E26, B22, E14, GU10 and MR16 explained, with the export mistakes that cost importers money.

Buying Guide · 7 min read
3W LED Globe Bulb E14 from C&R Group

Lumens Not Watts How To Compare LED Bulbs Properly

Why wattage stopped being a measure of brightness, and what to ask a supplier instead.

Buying Guide · 6 min read
3W Vintage Edison LED Bulb E26 160-200lm from C&R Group

LED Colour Temperature Explained From 2400K To 6500K

What kelvin values actually mean, where each band belongs, and how to avoid a room full of returns.

Design Guide · 7 min read
12W WWCW Smart WiFi LED Downlight from C&R Group

CRI And Why Colour Rendering Decides Retail Lighting

What Ra means, which numbers matter in shops and hotels, and where a low CRI lamp costs you sales.

Design Guide · 6 min read
SMD5060 60 LEDs/m IP68 LED Strip Light from C&R Group

SMD LED Chip Types Explained 2835 3014 3528 5050 And 5630

What the four-digit numbers mean, how they differ in output and heat, and where each belongs.

Component Guide · 7 min read
SMD5060 60 LEDs/m IP67 LED Strip Light from C&R Group

IP67 Versus IP68 Choosing Waterproof LED Strip

What the two digits mean, where each grade belongs, and the specification trap in outdoor strip.

Material Guide · 6 min read
SMD5060 60 LEDs/m IP68 LED Strip Light from C&R Group

How To Power And Cut LED Strip Light Without Killing It

Sizing the driver, understanding voltage drop, and cutting at the right place every time.

Installation Guide · 8 min read
8W RGBWW Bluetooth Smart LED Bulb from C&R Group

WiFi Versus Bluetooth Versus RF For LED Control

Three control technologies, three different failure modes, and how to choose between them.

Comparison · 7 min read
CCT Adjustable LED Panel Light 595x595mm from C&R Group

Choosing LED Panel Sizes For Suspended Ceiling Grids

Metric grids, cut-out dimensions and void depth - the three numbers that decide a panel order.

Design Guide · 6 min read
1200mm T8 LED Tube Light from C&R Group

T5 Versus T8 LED Tube Retrofit A Practical Guide

Identifying what is already installed, choosing the right tube, and the ballast question.

Installation Guide · 7 min read
10W LED Flood Light from C&R Group

How To Size LED Flood Lights Using Lux At Distance

Why wattage is the wrong starting point, and how to use published illuminance figures instead.

Design Guide · 7 min read
20W Portable Rechargeable LED Flood Light from C&R Group

Rechargeable Flood Lights Understanding Battery Capacity And Runtime

How amp-hours, charging time and working time relate, and what to check before a volume order.

Buying Guide · 6 min read
9W LED Globe Bulb E27 from C&R Group

CE And RoHS What LED Importers Actually Need To Check

What the marks mean, what a certificate does and does not cover, and the questions to ask a factory.

Compliance Guide · 8 min read
GU10 5W COB LED Spotlight 24-36 Degree Beam from C&R Group

Beam Angle Guide For Retail And Display Spotlighting

Choosing between 24, 36, 45 and 60 degree beams, and calculating the pool of light you will get.

Design Guide · 6 min read

Still Not Sure Which Model You Need

Send us the application, the quantity and the destination market. We would rather answer a technical question properly than quote the wrong product quickly.