FAQ

To find out how to clean the stainless steel parts of luminaires, consult this page.

Sammode luminaires should be stored in a temperate environment, with temperatures between 0 and 35°C and humidity not exceeding 75%, with no condensation forming.

Luminaires without batteries can be stored safely for up to 10 years, provided the recommended storage conditions are followed.

Luminaires with batteries can be stored safely for :

6 months for NiMh batteries
18 months for Li-ion (LiFePO4) batteries

After this period, the battery should be recharged.

To find out how to maintain brass luminaires, consult this page.

Sammode luminaires with LED modules are equipped with drivers that are compatible with all neutral systems. However, in the specific case of IT systems, Sammode recommends the use of drivers protected against voltage peaks of up to 4kV, to limit the risk of failure due to overvoltage. These drivers, selected for their robustness and longevity, are used in all our Xtrem industrial ranges.

Conditions of discomfort caused by excessive luminance or luminance contrast.

A presence detector is a sensor that emits an electrical pulse when an element moves within its detection zone, triggering one or more luminaires to come on.

DALI (Digital Addressing Lighting Interface). Protocol by which a signal transmitted by a pair of cables called a bus is able to manage an installation of several luminaires. The DALI system allows the luminaires belonging to the system to be individually addressed and provides feedback on the correct operation and dimming level of the luminaires.

White light tending towards blue, typically with a cold colour temperature of 5000 K or more.

White colour of a light source with a colour temperature between 3500 and 5000 K.

White light tending towards yellow-orange, typically with a warm colour temperature of 3500 K or less.

Power supply using a semiconductor circuit for instant start-up and power supply of fluorescent lamps. 

Device used to transform the current from the electrical network so that it can be supplied to the light sources with the appropriate power and intensity parameters. Ballasts are used for fluorescent lamps and drivers for LEDs.

ULR (Upward Light Ratio) refers to the ratio between the luminous flux emitted by a luminaire towards the upper hemisphere and the total luminous flux emitted by this luminaire, measured when installed in its normal position of use.

For example, a ULR of 0% means that upward light emission is zero.

This is the ability of a light source to render the colors of an object by report à those produced with a source from reference. He is between 0 and 100 (for a light ideal white).  

 It is theproperty of a luminous flux to be concentrated, or the ability of an optical system to concentrate a luminous flux.  

This is the photometric quantity that expresses the luminous power of a source. It is a fundamental quantity in the international system. It is used to define how luminous a point is in a given direction. It is measured in candela (cd).

This is the protection rating against penetration by solid and liquid objects.

TheIK (impact energy) index characterizes the enclosure’s resistance to mechanical damage .

Optical system with metal louvers (steel or aluminum) to conceal the light source from the view the observer under a certain angle. 

 Se said a luminaire on which the user can vary the luminous the luminous flux.  

Mechanical device for joining two parts without tools tools composed of a system of hooks and springs. 

Outdoor luminaire installed on a vertical surface (a wall, for example). It often possesses high mechanical properties ( IP and IK).  

 This is the ellipse-shaped area of the CIE 1931 chromaticity diagram where the color at the center of the ellipse cannot be distinguished from all the other colors in the ellipse (visual color confusion zone). The size of the ellipse determines the zone within which a color can vary, either in its initial state, or to be maintained: the smaller the size, the narrower the chromatic tolerance.

Refers to all light rays produced by a source in a given direction.  

In a lighting fixture, this is the ratio between the luminous flux emitted by the fixture itself and the plug power. It is expressed in lumen per watt (lm/W).

This is the property of a luminous flux to be wide, or the ability of an optical system to widen a luminous flux.  

This is the average of illuminances measured or calculated in a room according to a standard grid of points.

Optical element selecting in whole or in part wavelengths wavelengths of the spectrum of a light source.  

Quantity of light emitted by a source in one second in all directions. It is measured in lumen (lm).  

Lighting located along the usual traffic route, taking into account transition zones between sections of a route.

This is theratio of the luminous flux received by a surface divided by the area of that surface, measured in lux.  

It’s a directional light with a very intensive beam, particularly suitable for lighting of surfaces. 

 Uniform illumination of a room that does fits not specific features.  

This is localized lighting to highlight an element (product for sale or architectural form, for example).

Conditions of discomfort caused by excessive luminance or luminance contrast.

Device for à heat dissipation of the heat emitted by the light source. 

Low-intensity lighting that creates a soft ambience in a room or building.

It is aplastic, metal or ceramicobject placed at the end of the electrical circuit to accommodate the lamp base. It is essential to match the type of socket to the type of lamp. from base. 

Refers to lighting where the beam is directed by a reflector.

Property of a surface or material that directs incident light rays in all directions. Corresponds to the effect of an opal material.

For luminaires equipped with devices to conceal the light source the vision of the light source (louvres), the louvre is the maximum angle is the maximum angle at which the lamp is not visible (measured in relation to the horizontal).  

Optical element, translucent or opal, capable of diffusing light rays incident on the space itself into space. 

It is a device that transforms the current of the electrical network in such a way as to supply it, within the parameters parameters appropriate parameters from power and intensity to light sources. Ballasts are used for fluorescent lamps and drivers for LEDs. .

 The rear part of the light source that fits into the socket to ensure both electrical connection and mechanical fastening. It is essential to adapt the type of socket at type of base.  

 This is thedistribution of light, directing the beam so that it shines more brightly in the desired direction, for example, to illuminate a picture or a wall.  

Luminaire installed on a surface vertical surface wall wall). The sconce itself can be installed horizontally or vertically.  

Analog lighting management protocol, allowing luminaire intensity to be varied by means of a command (potentiometer, presence detector control system). 

This is the property of a surface defined by the intensity of the reflected ray divided by the intensity of the incident ray.  

This is the property of a material defined by the intensity of the transmitted ray, divided by the intensity of the incident ray.

Refers to a surface with high optical reflective properties, giving it a “mirror” effect.

Sorting the LEDs produced according to flux, color temperature and voltage. For a given color bin, a constant quality of light is guaranteed.

 This is anSI (Système International) unit corresponding to light intensity in a given direction.  

Also known as “switch control”, this simple control system lets you manage lighting dimming from a simple push-button switch.

It’s simply the SI unit of measurement for luminance.

This is a classification adopted by LightingEurope for ballasts for fluorescent lamps and tubes, high-pressure sodium lamps and metal halide lamps, based on their consumption. 

It’s a light that’s not very opal, or even transparent.

This is the ability of a device or system to function satisfactorily in its electromagnetic environment, without itself generating intolerable electromagnetic disturbances for anything in that environment.

For an electrical device, characterization of a level of electrical protection for humans. There are four electrical classes:  

Class 0 equipment :

 Class 0 equipment is totally forbidden for any professional use. 

Class I equipment :

Class I equipment provides additional protection by connecting all metallic grounds to an earth terminal, which in turn is connected to the installation’s main protective conductor. To be properly protected, the installation must be connected to a good earth.  

Class II equipment :

Class II equipment, also known as “double insulation” or “reinforced insulation”, provides additional protection against electric shock under normal conditions of use. Due to their design or implementation, this equipment does not allow contact with active parts. This equipment is not earthed.  

Class III equipment :

This equipment is designed to protect against electric shock by limiting the supply of safety extra-low voltage (SELV) or protective extra-low voltage (PELV). On construction sites, you need to choose equipment with a rated voltage of less than or equal to 25 volts AC and 60 volts DC.

Of the eye or eyes. Amplitude angular of space in which an object is located when the observer looks directly ahead. The field can be monocular or binocular.  

It’s the flow of electric charge (usually negative) negative) that crosses a surface in a unit of time. It is a fundamental quantity in the international system. It is measured in amperes.   

This is a sensor that emits an electrical impulse when an element moves within its detection zone. 

It’s a sensor that measures luminosity at a given point, and by connecting it to the luminaires, it adapts the flow of light through a dimming system so that the same amount of light is always available in the room.

Mechanical device for joining two parts without tools, consisting of a system of hooks and springs. 

Optical system with metal louvers (steel or aluminum) to hide the light source from view at a certain angle. 

Outdoor luminaire installed on a vertical surface (e.g. a wall). It often has high mechanical properties (IP and IK). 

The IK (impact energy) index characterizes the enclosure’s resistance to mechanical damage. 

This is the protection rating against penetration by solid and liquid objects.