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For once, we switch off the light to illuminate, and switch it on to tell a story.
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    CATHODE | © Davide Groppi srl | All Rights Reserved
    CATHODE
    A scientific looking bulb made from mouth blown glass.
    The shape brings to mind a light bulb that was never born. Think steampunk: situations in which instruments were inspired by the rudiments of electricity. The classic light bulb that has no future becomes a wonderful device made of luminous diodes. What would the past have looked like if the future had arrived first?
    Luminaire available also in ENDLESS version.
    Main specifications Datasheet
    Design Omar Carraglia / 2015
    CATHODE - Image | © Davide Groppi srl | All Rights Reserved
    CATHODE - Image | © Davide Groppi srl | All Rights Reserved
    CATHODE - Image | © Davide Groppi srl | All Rights Reserved
    CATHODE - Image | © Davide Groppi srl | All Rights Reserved
    CATHODE - Image | © Davide Groppi srl | All Rights Reserved
    CATHODE - Image | © Davide Groppi srl | All Rights Reserved
    CATHODE - Image | © Davide Groppi srl | All Rights Reserved
    CATHODE - Image | © Davide Groppi srl | All Rights Reserved
    CATHODE - Image | © Davide Groppi srl | All Rights Reserved
    CATHODE - Image | © Davide Groppi srl | All Rights Reserved
    CATHODE - Image | © Davide Groppi srl | All Rights Reserved
    CATHODE - Image | © Davide Groppi srl | All Rights Reserved
    Model
    CATHODE 1 ceiling driver version
    CATHODE 1
    Type

    Suspension

    Use

    Indoor

    Finish

    Matt White

    Brushed Brass

    Polished Black Chrome

    CCT - Flux

    2700K - 264lm

    3000K - 284lm

    CRI

    >90

    Input

    100-240V - 50/60Hz

    Power

    5,6W

    Material

    Metal - Blown glass

    Other notes

    ON/OFF

    Certifications and protection
    CE
    IP20
    CATHODE 1 ceiling driver version
    CATHODE 1
    Type

    Suspension

    Use

    Indoor

    Finish

    Matt White

    Brushed Brass

    Polished Black Chrome

    CCT - Flux

    2700K - 264lm

    3000K - 284lm

    CRI

    >90

    Input

    110-240V - 50/60Hz

    Power

    6W

    Material

    Metal - Blown glass

    Other notes

    Dimmable

    Certifications and protection
    CE
    IP20
    CATHODE 2 remote driver version
    CATHODE 2
    Type

    Suspension

    Use

    Indoor

    Finish

    Matt White

    Brushed Brass

    Polished Black Chrome

    CCT - Flux

    2700K - 264lm

    3000K - 284lm

    CRI

    >90

    Input

    Max 350mA DC

    Power

    4W

    Material

    Metal - Blown glass

    Certifications and protection
    CE
    CLASSE TERZA
    IP20
    Accessories
    SUSPENSION KITS
    SUSPENSION KITS
    1A0360000.00.00
    Decentralization kit
    CATHODE 1
    SUSPENSION KITS
    1A0770300.00.00
    Kit ceiling rose and decentralizer
    CATHODE 1
    White cable 3 m included

    Matt White

    1A0770400.00.00
    Kit ceiling rose and decentralizer
    CATHODE 1
    Black cable 3 m included

    Matt Black

    SUSPENSION KITS
    1X0000300.06.00
    Recessed suspension kit for 12,5 mm plasterboard
    CATHODE 2
    For electrical cables - 1 Piece
    Plasterboard cut-out Ø 44 mm
    Minimum space for mounting 70 mm

    Matt White

    1X0000400.06.00
    Recessed suspension kit for 12,5 mm plasterboard
    CATHODE 2
    For electrical cables - 1 Piece
    Plasterboard cut-out Ø 44 mm
    Minimum space for mounting 70 mm

    Matt Black

    SUSPENSION KITS
    1X0010300.06.00
    Ceiling suspension kit
    CATHODE 2
    For electrical cables - 1 Piece

    Matt White

    1X0010400.06.00
    Ceiling suspension kit
    CATHODE 2
    For electrical cables - 1 Piece

    Matt Black

    SUSPENSION KITS
    1X0050300.01.00
    Wall adapter plate
    CATHODE 2
    For mounting on brick masonry walls

    Matt White

    DRIVERS
    DRIVERS
    1Z0241180.350
    Driver
    CATHODE 2
    Input 220-240V(100-127V) - 50/60Hz - Output 350mA - 17W(15W) - IP20 - DALI
    DRIVERS
    1Z0240870.350
    Driver
    CATHODE 2
    Input 220-240V(100-127V) - 50/60Hz - Output 350mA - 18W(15W) - IP20 - PUSH - 1-10V
    DRIVERS
    1Z0240850.350
    Driver
    CATHODE 2
    Input 220-240V - 50/60Hz - Output 350mA - 17W - IP20 - TRIAC/IGBT
    DOWNLOAD
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    A story. A story of light.
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    About

    It all started in a small laboratory in the historical centre of the Italian town of Piacenza during the late 1980’s. Davide Groppi was inventing and producing his first lamps and decided simply to use his own name for the name of the company.

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    Address

    Davide Groppi s.r.l.
    Via Belizzi 20 / 22 - 29122 - Piacenza - Italy
    VAT 01493120339
    © 2025 Davide Groppi s.r.l.

    Company with sole shareholder under the direction and coordination of Dexelance s.p.a.

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