Lighting technology for professional users

 

• Lower power consumption (6 times lower than with conventional bulbs)
• Long duty cycle of the LED lamps (up to 50,000 hours)
• They don’t contain any harmful substances
• High luminous efficiency
• No start-up delay (as know from energy saving lamps)
• Flexible application (for example, LED strips)
• Compact and small design possible (for example, SMD LEDs)

Is the value of the total radiation emitted by a light source as visible light. At this, the brightness sensitivity of the human eye regarding the various wave lengths is of significant importance. Two light sources of different color therefore have the same lumen value, if they are perceived as equally bright.The luminous flux directed to a certain area is indicated as luminosity. At this, 1 lumen per square meter equals 1 lux.This value defined the efficiency grade of a light source. The higher the value, the better the conversion of the consumed power into visible light. This value is perfectly suitable for any comparison of different light source regarding their efficiency.This value measured in Kelvin defines the optical color impression of a light source. The higher the value, the bluer the light appears. In the range of 5000 K for example, the temperature color is defined as daylight white.

Light color	Color temperature in Kelvin
Warm white	Below 3300 K
Neutral white	3300 K to 5000 K
Daylight white/cold white	Above 5000 K

The so called CRI (Color Rendering Index) describes the ability of a light source to reproduce colors.
At this, the natural solar light has the best color rendering index (CRI = 100) and is used as reference. The higher the CRI value, the better the color rendering ability. A CRI index of 95 is regarded as excellent.

The protection type designation normally consists of the letters IP and two key figures. These indicate which degree of protection of a housing offers regarding touching or foreign objects, respectively (first key figure) and humidity or water, respectively (second key figure).

Example: IP 68 absolutely dust and waterproof housingely (second key figure)

 

Key figure 1: Protection against dust	Key figure 2: Protection against humidity and water
0  No protection	0  No protection
1  Protection against solid foreign objects with diameter > 50 mm	1  Protection against vertically falling drops of water
2  Protection against solid foreign objects with diameter > 12.5 mm	2  Protection against inclined (up to 15°) falling drops of water
3  Protection against solid foreign objects with diameter > 2.5 mm	3  Protection against falling sprays of water
4  Protection against solid foreign objects with diameter > 1 mm	4  Protection against splash water
5  Dust-protected	5  Protection against jets of water (nozzle)
6  Dustproof	6  Protection against strong jets of water
	7  Protection against the effect of temporary immersion under water
	8  Protection against permanent immersion under water

ATEX is an abbreviation for the French term Atmosphères Explosiblesandaims to protect humans, the environment and machinery from explosions. ATEX directives apply to all devices, machines and protective systems that are used in potentially explosive atmospheres.

 

For example, the chemical industry, which works with gases or flammable liquids, the metal industry and the construction industry, as well as refineries that work with crude oil or biogases.

In agriculture and the wood industry, highly flammable dust mixtures are produced that could potentially lead to explosions. Only lamps with ATEX approval may be used in this environment.
 

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Ex-protected LED work lamp ATEXBEAM PL-AT800, 3 W, Li-Ion battery
Ex certification for gas (Zone 1, 2) and dust (Zone 21, 22)
EX II 2G Ex ib IIC T4 Gb
EX II 2D Ex ib IIIC T150°C Db

 

EX	Meaning of the labelling according to the ATEX directive
II	ATEX device group The ATEX explosion groups define the authorised place of use. I =  Use in mining and underground workings II = Use in all other areas, e.g. chemical plants, pharmaceuticals, oil rigs, refineries, etc.
2	ATEX device category (application in respective Ex-zone) The devices are classified according to the conformity assessment procedure into device categories 1 to 3. 1 = No ignition sources are present in the event of rare and unexpected malfunctions 2 = No ignition sources are present in the event of malfunctions to be expected during normal operation 3 = No ignition sources are present during normal operation
G/D/M	Explosive atmosphere The device groups and categories are supplemented by a letter for the potentially explosive atmosphere: G = gas, vapour, mist, D = dust, M = methane, coal dust 1G |   Risk: constant, frequent or long-term 1G, 2G |   Risk: occasional 1G, 2G, 3G |   Risk: rare or short-term 1D |   Risk: constant, frequent or long-term 1D, 2D |   Risk: occasional 1D, 2D, 3D |   Risk: rare or short-term M1, M2 |   Risk: mining
Ex	Explosion protected operation material
ib	Ignition protection type
II C	Explosion group for gases and vapours The classification in explosion groups considers the probability of the presence of an explosive atmosphere and the simultaneous occurrence of a defect on the device which could lead to ignition. The hazard increases from A to C. A: very high level of safety B: high level of safety C: normal level of safety
T4	Temperature class The classification into temperature classed considers the ignition points of the gases/dusts and indicates the maximum allowed surface temperature of the device. The hazard increases from T1 to T6. T1: 450 °C T2: 300 °C T3: 200 °C T4: 135 °C  T5: 100 °C T6:   85 °C

Potentially explosive zones are areas which require specific measures regarding the construction, installation and use of electrical and non-electrical devices.
 

device category	1	2	3
G (Gas, vapour, mist)	0	1	2
D (Dust)	20	21	22
Frequency	constantly, long-term, frequently	occasionally	rarely or only for a short period