LED verlichting woordenboek
LED lighting woordenboek
Understanding LED lighting terminology helps you make informed decisions about your lighting solutions. This glossary covers the most important technical terms and concepts in LED technology.
Lumens (lm)
The unit measuring total light output from a source. Unlike watts, which measure energy consumption, lumens indicate actual brightness. A typical 60W incandescent bulb produces around 800 lumens, while an LED achieving the same output uses only 8-10 watts.
Colour Temperature (Kelvin/K)
Measured in Kelvin, this describes the colour appearance of light. Warm white (2700-3000K) creates a cosy atmosphere, neutral white (4000K) suits offices, and cool white (5000-6500K) provides clinical brightness for task lighting.
CRI (Colour Rendering Index)
A scale from 0-100 measuring how accurately colours appear under a light source compared to natural sunlight. Quality LED lighting should have a CRI of 80 or higher, with 90+ considered excellent for retail, galleries, and interior spaces where colour accuracy matters.
Efficacy (lm/W)
The ratio of light output (lumens) to energy input (watts). Modern LED technology achieves 100-150 lm/W, significantly outperforming incandescent bulbs (10-17 lm/W) and fluorescent tubes (60-90 lm/W). Higher efficacy means lower running costs.
Beam Angle
The spread of light from a source, measured in degrees. Narrow beams (15-30°) create spotlighting effects, medium beams (35-60°) suit general accent lighting, and wide beams (90-120°) provide ambient illumination for larger areas.
IP Rating (Ingress Protection)
A two-digit code indicating protection against solids and liquids. The first digit (0-6) covers dust, the second (0-8) covers moisture. IP65 suits outdoor use, IP44 works for bathrooms, and IP20 suffices for dry indoor locations.
Dimming Compatibility
Not all LEDs dim smoothly. Phase-cut dimming (leading/trailing edge) works with traditional dimmers, while 0-10V and DALI protocols offer professional control. Always verify dimmer compatibility to avoid flickering, limited range, or buzzing.
Driver
The electronic component converting mains voltage to the low DC voltage LEDs require. Constant current drivers maintain stable output regardless of voltage fluctuations. Quality drivers prevent flickering and extend LED lifespan significantly.
Lifespan (L70/L80)
LED lifespan indicates when output decreases to 70% (L70) or 80% (L80) of initial brightness. A rating of 50,000 hours L80 means the LED maintains 80% brightness for approximately 17 years at 8 hours daily use.
Binning
The manufacturing process grouping LEDs by colour and brightness characteristics. Quality manufacturers use tight binning tolerances (MacAdam 3-step ellipses or better) ensuring consistent colour across multiple fixtures in one installation.
UGR (Unified Glare Rating)
A metric measuring discomfort glare from lighting fixtures, scaled from 10-30. Values below 19 suit offices and detailed work, while 22-25 works for industrial spaces. Lower UGR values indicate better visual comfort.
Lux
The measurement of illuminance—how much light falls on a surface (lumens per square metre). Office desks typically require 500 lux, while precision work needs 1000+ lux. Lux values decrease with distance from the light source.
Flicker
Rapid fluctuations in light output, often imperceptible but causing eye strain and headaches. Quality LED drivers eliminate visible flicker (>100Hz). IEEE 1789 compliant products ensure flicker-free performance for sensitive environments.
Heat Management
LEDs generate heat at the junction, requiring proper dissipation through heatsinks or chassis design. Excessive temperatures reduce lifespan and efficiency. Quality fixtures maintain junction temperatures below 85°C for optimal performance.
Power Factor (PF)
The ratio of real power to apparent power, ranging from 0-1. LEDs with PF >0.9 use electricity efficiently, reducing wasted energy and meeting building regulations. Poor power factor increases electricity distribution costs.
COB (Chip-on-Board)
A LED packaging technology mounting multiple chips directly onto a substrate, creating a single, powerful light source. COB LEDs offer excellent thermal management, uniform light distribution, and high lumen density in compact designs.
Smart/Connected Lighting
LED systems integrating with control protocols like Bluetooth, Zigbee, or Wi-Fi for remote management. Features include scheduling, colour tuning, dimming, and integration with building management systems for energy optimisation.
Tunable White
Technology allowing colour temperature adjustment throughout the day. Mimicking natural light patterns supports circadian rhythms—warmer tones (2700K) for evenings, cooler (5000K+) for alertness during working hours.
Emergency Lighting
LED fixtures with integrated battery backup activating during power failures. Self-testing versions automatically verify functionality, meeting safety regulations for escape routes, requiring typically 3 hours autonomy at reduced output.
LM-80 & TM-21
Industry standards for measuring LED lumen maintenance. LM-80 defines testing methods over 10,000+ hours, while TM-21 provides extrapolation formulas projecting long-term performance. Both ensure reliable lifespan claims from manufacturers.
Our Products
LED High Bay 150W 4000K – Sosen Driver – 90° – 185LM/W – IP65 – DALI Dimmable | 5 Year Warranty
In stock
| SKU | 100272 |
|---|---|
| Quantity | Per Piece |
| Watt | 150 Watt |
| Replacement wattage | 750 Watt |
| Luminous flux | 27.750 Lumen |
| Lumen per Watt | 185lm/w |
| Color temperature | 4000K |
| Beam angle | 90° |
| IP-Rating | IP65 |
| Driver | Sosen |
| Dimmable | DALI-Dimmbar |
| Glare protection | UGR<19 |
| Material | Cast Aluminium |
| Energy label | B |
| Operating hours | 100.000 Stunde |
| Operating temperature | -40 Bis 50°C |
| Voltage | 100-277V |
| Colour rendering index (CRI) | Ra>80 |
| Power factor | >0.95 |
| Certifications | CE, ENEC, RoHS |
| Verpackung | Biologisch abbaubar verpackt |
| Colour | Black |
| Warranty | 5 Years |
LED High Bay 70W-100W – 210LM/W – 5000K – Philips Driver – 90° – IP65 – 0-10V Dimmable | 5 Year Warranty
In stock
| SKU | 3515326-5K |
|---|---|
| Quantity | Per Piece |
| Watt | DIP-Schalter 70W-100W |
| Replacement wattage | 1200 Watt |
| Luminous flux | 21.000 Lumen |
| Lumen per Watt | 210lm/w |
| Color temperature | 5000K |
| Beam angle | 90° |
| IP-Rating | IP65 |
| Driver | Philips |
| Dimmable | 0-10V Dimmbar |
| Glare protection | UGR<28 |
| Material | Aluminium |
| Energy label | A |
| Operating hours | 50,000 Hours |
| Operating temperature | -20 to 55°C |
| Voltage | 200-240V, AC |
| Colour rendering index (CRI) | Ra>70 |
| Power factor | >0.95 |
| Certifications | CE, RoHS |
| Colour | Black |
| Warranty | 5 Years |
LED High Bay DOB Serie 200W – 4000K – 120LM/W | Beam Angle 90° – IP65
In stock
| SKU | 100192-4K |
|---|---|
| Quantity | Per Piece |
| Watt | 200 Watt |
| Replacement wattage | 1000 Watt |
| Luminous flux | 24.000 Lumen |
| Lumen per Watt | 120lm/w |
| Color temperature | 4000K |
| Beam angle | 90° |
| IP-Rating | IP65 |
| Driver | DOB |
| Dimmable | Not Dimmable |
| Material | Aluminium |
| Energy label | E |
| Operating hours | 50,000 Hours |
| Operating temperature | -20 to 55°C |
| Cabel Lenght | 30CM Long |
| Voltage | 200-240V, AC |
| Colour rendering index (CRI) | Ra>80 |
| Power factor | >0.9 |
| Certifications | CE, RoHS |
| Colour | Black |
| Warranty | 3 Years |
LED High Bay 90W-120W-150W – 210LM/W – 4000K – Philips Driver – 90° – IP65 – 0-10V Dimmable | 5 Year Warranty
In stock
| SKU | 5164353-4K |
|---|---|
| Quantity | Per Piece |
| Watt | DIP-Schalter 90W–120W–150W |
| Replacement wattage | 1200 Watt |
| Luminous flux | 31.500 Lumen |
| Lumen per Watt | 210lm/w |
| Color temperature | 4000K |
| Beam angle | 90° |
| IP-Rating | IP65 |
| Driver | Philips |
| Dimmable | 0-10V Dimmbar |
| Glare protection | UGR<28 |
| Material | Aluminium |
| Energy label | A |
| Operating hours | 50,000 Hours |
| Operating temperature | -20 to 55°C |
| Voltage | 200-240V, AC |
| Colour rendering index (CRI) | Ra>70 |
| Power factor | >0.95 |
| Certifications | CE, RoHS |
| Colour | Black |
| Warranty | 5 Years |
LED High Bay 90W-120W-150W – 210LM/W – 5000K – Philips Driver – 90° – IP65 – 0-10V Dimmable | 5 Year Warranty
In stock
| SKU | 5164353-5K |
|---|---|
| Quantity | Per Piece |
| Watt | DIP-Schalter 90W–120W–150W |
| Replacement wattage | 1200 Watt |
| Luminous flux | 31.500 Lumen |
| Lumen per Watt | 210lm/w |
| Color temperature | 5000K |
| Beam angle | 90° |
| IP-Rating | IP65 |
| Driver | Philips |
| Dimmable | 0-10V Dimmbar |
| Glare protection | UGR<28 |
| Material | Aluminium |
| Energy label | A |
| Operating hours | 50,000 Hours |
| Operating temperature | -20 to 55°C |
| Voltage | 200-240V, AC |
| Colour rendering index (CRI) | Ra>70 |
| Power factor | >0.95 |
| Certifications | CE, RoHS |
| Colour | Black |
| Warranty | 5 Years |
LED Square High Bay 200 Watt – 4000K Neutral White – 160LM/W – UGR<21 – DALI Dimmable – Sosen Driver – With 1m Cable
In stock
class=”faq-schema” style=”max-width:800px;margin:40px auto;”>
Frequently Asked Questions
Getting Started
Understanding LED lighting terminology helps you make informed decisions when selecting fixtures for your home or business. This glossary covers essential terms that appear in product specifications and technical documentation. Whether you are comparing color temperatures, evaluating brightness levels, or assessing fixture durability, knowing these definitions ensures you choose the right LED solutions. As LED technology continues advancing, staying familiar with industry terminology enables better communication with suppliers and installers while maximizing the benefits of energy efficient lighting systems.