FAQ

Support ❯ FAQ

Technical and maintenance advice

  • How do I clean the stainless steel parts of Sammode luminaires?

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

  • Are there any special storage requirements for Sammode luminaires (temperature, etc.)?

    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.

  • How long can luminaires be stored without risk of deterioration?

    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.

  • How do I care for brass light fittings from the Guariche collection?
    To find out how to maintain brass luminaires, consult this page.
  • Are Sammode LED luminaires compatible with all neutral systems?

    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.

Lighting glossary

  • What is luminaire-related glare (measured in UGR)?

    Conditions of discomfort caused by excessive luminance or luminance contrast.

  • What is a presence detector linked to one or more lights?
    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.
  • What is a DALI-controllable luminaire?

    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.

  • What is a cool white colour temperature?

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

  • What is a neutral white colour temperature?

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

  • What is a warm white colour temperature?

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

  • What is an electronic ballast?
    A power supply using a semiconductor circuit to instantly start and supply electricity to fluorescent lamps.
  • What is a power supply?

    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.

  • What is the ULR (Upward Light Ratio)?

    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.