Illuminance Meter

Linshang offers a range of illuminance and brightness meters. The LS330 spectral illuminance meter features an integrated design, while the LS335 spectral illuminance meter has a split design with touchscreen operation. These instruments can measure multiple parameters such as illuminance, color temperature, flicker, color rendering index, color tolerance, and spectral curves, providing a comprehensive evaluation of light source characteristics with wide applications. The LS331 is dedicated to UV inspection lamps for nondestructive testing, meeting national standards for more accurate measurements. The LS332 brightness meter is equipped with dual optical tubes and can measure brightness, flicker, color temperature, and other parameters, while displaying spectral curves. It conforms to the national level-1 brightness meter standard.

LS335 Spectral Illuminance Meter

Color touchscreen with clear, intuitive interface

Measures Lux, CCT, CRI and PPFD

Spectral curve display for rapid identification of full-spectrum LED lights

High precision, compliant with national metrology standards

Browse:85

LS330 Spectral Illuminance Meter

Multi-parameter measurement, wider application

1,000,000Lx ultra-large range design

Spectral sensor suitable for human eyes spectrum, more accurate

High precision, pass authoritative metrology inspection

Browse:3388

LS331 Flaw Detection Light Meter

1. Specialized for non-destructive testing (NDT)

2. 1,000,000 Lux visible light, 200,000 μW/cm² UV ultra-large range design

3. Adopt spectral sensor for high accuracy

Browse:1185

LS332 Luminance Meter

Simultaneously measures luminance, flicker frequency, CCT, CRI

Replaceable 10mm/20mm dual light tube

Displays spectral curve

High accuracy, authoritative certification

Browse:552

What is an Illuminance Meter & Luminance Meter?

An illuminance meter, also known as an illumination meter, light meter or lux meter, is a specialized instrument used to measure the amount of light that falls on a surface. It provides readings in lux (lx) or foot-candles (fc), helping users evaluate lighting conditions for various applications, such as workplace safety, photography, architectural design, and industrial lighting assessments.

A luminance meter measures the intensity of light emitted or reflected by a surface in cd/m² and is commonly used for displays, panels, backlights, and high-brightness applications.

Modern illuminance meters come in different types, including spectral illuminance meters, which can analyze light across different wavelengths for precise measurement, and standard lux meters, which provide general light intensity readings. Some advanced models also feature data logging, multiple measurement modes, and bluetooth connection, making them suitable for scientific research and professional applications. Linshang’s latest LS335 spectral illuminance meter integrates nearly all essential functions for a wide range of applications. It features a large color touchscreen that makes operation simple and all measured data easy to read at a glance. In addition to the LS335, Linshang also offers the button-operated LS330 spectral illuminance meter, the LS331 flaw detection light meter, and the LS332 luminance meter designed specifically for professional screen brightness measurement.

Types of Illuminance Meters & Luminance Meters

Illuminance meters and luminance meters come in various types, each designed for specific measurement needs. The table below provides a comparison of different types of illuminance meters and luminance meters:

Type	Description	Key Features	Applications
Standard Illuminance Meter (Lux Meter)	Measures general light intensity in lux or foot-candles.	Basic light measurement Compact and easy to use Affordable	Indoor and outdoor lighting assessment Workplace and office lighting compliance
LS335 Spectral Illuminance Meter	Measures light intensity across different wavelengths, providing spectral data.	Color Touchscreen Lux, CCT, Spectrum High precision	Normal and plant modes Data logging Comprehensive light source evaluation
LS330 Spectral Illuminance Meter	Measures light intensity across different wavelengths, providing spectral data.	High precision Measures color temperature & spectrum Cost-effctive	Normal and plant modes Data logging LED and OLED lighting analysis
LS331 Black Light Meter	Measures ultraviolet (UV) light intensity, often used for UV-A applications.	Specialized for non-destructive testing (NDT)	Magnetic Particle Testing Penetration Testing
LS332 Luminance Meter	Measures screen luminance (cd/m²), CCT, flicker, and more	Measures luminance, CCT, flicker Displays spectral curve	Display luminance measurement and backlight testing 10mm/20mm dual light tube

Each type of illuminance meter or luminance meter serves a specific purpose, whether for basic lighting assessments, precise spectral analysis, display luminance testing, or UV light measurement. Choosing the right instrument depends entirely on the specific requirements of your application.

Applications of Illuminance Meters

Illuminance meters are widely used across various industries to measure light intensity and ensure optimal lighting conditions. Below are some of the key applications:

Indoor and Outdoor Lighting Assessment

Ensures proper illumination in workplaces, homes, and public spaces.
Helps comply with lighting standards such as OSHA and ISO 8995.
Used in urban planning for street lighting efficiency.

2. Industrial and Commercial Applications

Monitors light levels in manufacturing plants to improve worker safety and efficiency.
Assesses lighting in warehouses, shopping malls, and offices for energy savings.
Ensures proper lighting in hospitals and laboratories for accurate operations.

3. Horticulture and Plant Growth Monitoring

Measures PPFD (Photosynthetic Photon Flux Density) to optimize plant growth.
Helps control greenhouse lighting conditions for different plant species.
Measures chlorophyll levels to monitor plant health.

4. Penetrant Testing and Magnetic Particle Inspection

Used in non-destructive testing (NDT) to detect surface and subsurface defects in metals and materials.
Ensures proper UV-A intensity for fluorescent penetrant inspection (FPI) and magnetic particle inspection (MPI).

Illuminance meters play a crucial role in ensuring safety, efficiency, and accuracy in various fields. Choosing the right illumination meter depends on the specific requirements of the application.

Why choose Linshang illuminance meter?

Linshang Technology specializes in high precision and cost-effective illuminance meters, offering advanced solutions for various lighting measurement needs. Here’s why Linshang spectral illuminance meters stand out:

1. Freely switch between normal and plant modes

The instrument offers both normal and plant illumination modes, meeting diverse measurement needs.
It handles both everyday lighting detection and plant growth parameters (e.g., PPFD, chlorophyll content), helping users optimize lighting in various scenarios.

2. Multi-parameter, wider application

In normal mode, the instrument measures parameters like illumination, CCT, flicker frequency, UV index, SDCM, CRI, temperature, and humidity to evaluate lighting characteristics.
In plant mode, it accurately measures PPFD, YPFD, chlorophyll-a, and chlorophyll-b to optimize plant lighting for better quality and yield.

3. High Accuracy and Reliable Performance

Equipped with high-sensitivity sensors for precise light measurement.
Provides lux, PPFD, and spectral analysis for different applications.

4. Easy to Use and Portable Design

Compact and lightweight for on-the-go measurements.
User-friendly digital display with intuitive controls.

Whether you need an illuminance meter, spectral illuminance meter, lux meter, or black light meter, Linshang Technology provides high-quality, professional solutions for all your light measurement needs.

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