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De Vorm

De Vorm BV Dijkgraaf 38, 6921 RL Duiven

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Ratio Pendant Lamps

Ratio Pendant Lamps
  • Back to ProductsRatio Pendant Lamps
  • Introduction
  • Colours
  • Images
  • Projects
  • Specifications
  • Downloads

Introduction

Ratio Pendant Lamps bring metal spinning technology to contemporary interiors. Three lamp profiles share the same production method but vary in diameter-to-height proportion, creating a family of pendants that work individually or in combination. Each lamp features a spun steel shade with embedded GX53 LED module and duotone finish: white interior for light reflection, textured exterior in your choice of colour. The result is a functional pendant that addresses task lighting in offices, restaurants, and public spaces.

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Ratio Pendant Lamps bring metal spinning technology to contemporary interiors. Three lamp profiles share the same production method but vary in diameter-to-height proportion, creating a family of pendants that work individually or in combination. Each lamp features a spun steel shade with embedded GX53 LED module and duotone finish: white interior for light reflection, textured exterior in your choice of colour. The result is a functional pendant that addresses task lighting in offices, restaurants, and public spaces.

Three proportions, one family

Three distinct lamp profiles, each with different diameter-to-height proportions.


Ratio 19

Ratio 19

Ratio 19 Pendant Lamp cuts a tall, slender profile that suits high ceilings and narrow surfaces. The compressed diameter focuses light downward whilst the vertical proportion adds elegance to dining tables and café counters.

Ratio 29

Ratio 29

Ratio 29 Pendant Lamp offers balanced proportions that work across varied ceiling heights. The equal relationship between diameter and height creates a compact form that fits meeting rooms, workstations, and hospitality settings without dominating the space.

Ratio 39

Ratio 39

Ratio 39 Pendant Lamp extends wide with low vertical dimension to distribute light across larger surfaces. The flying-saucer silhouette makes a visual statement above conference tables, kitchen islands, and reception desks.

Available in five colours

All variants feature white interior and transparent electrical cord.


Black

Black

Silk Grey

Silk Grey

Olive

Olive

Marine

Marine

Burgundy

Burgundy

Use a single proportion for uniform appearance or mix all three to create rhythm in repetitive layouts. The duotone design allows colour play between multiple pendants or contrast with surrounding surfaces.

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Images

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Ratio Pendant Lamps in use

Ratio lamps appear above individual workstations, grouped over shared tables, or clustered in hospitality entries. The three proportions address different spatial requirements: Ratio 19 for intimate settings, Ratio 29 for standard desk and dining applications, Ratio 39 for larger communal surfaces.

Merck KGaA

Merck KGaA

Office Darmstadt, Germany by Design in Architektur


Specifications

  • Materials
    • Lampshade
      Wet-coated steel
    • Mounting block
      Aluminium, black anodised
    • Electrical cord
      Transparent, 2-core, 3 m
  • Technical details
    • Weight
      Ratio 19: 1 kg Ratio 29: 1.3 kg Ratio 39: 1.9 kg
    • Voltage
      100-240V
    • Power
      3W
    • Colour temperature
      3000K / 4000K / 6500K
    • Light output
      410 Lm
    • Dimmable
      No
    • Installation guide

      Find the installation guidelines here

  • Colours
    • Outer surface
      Matt finish: Burgundy (RAL 3005), Marine (RAL 5008), Olive (RAL 7033), Silk Grey (RAL 7044), Black (RAL 9011) Custom: any RAL colour
    • Inner surface
      White
    • Electrical cord
      Transparent

Downloads

  • Design files
    • Ratio 19 Pendant Lamp - 3D Files .zip Download
    • Ratio 19 Pendant Lamp - Technical Drawing .pdf Download
    • Ratio 29 Pendant Lamp - 3D Files .zip Download
    • Ratio 29 Pendant Lamp - Technical Drawing .pdf Download
    • Ratio 39 Pendant Lamp - 3D Files .zip Download
    • Ratio 39 Pendant Lamp - Technical Drawing .pdf Download
  • Reports & certifications
    • Ratio 19 Pendant Lamp - Material Passport .pdf Download
    • Ratio 19 Pendant Lampshade - LCA .pdf Download
    • Ratio 29 Pendant Lamp - Material Passport .pdf Download
    • Ratio 29 Pendant Lampshade - LCA .pdf Download
    • Ratio 39 Pendant Lamp - Material Passport .pdf Download
    • Ratio 39 Pendant Lampshade - LCA .pdf Download
  • Product documentation
    • Ratio 19 Pendant Lamp - Productsheet .pdf Download
    • Ratio 29 Pendant Lamp - Productsheet .pdf Download
    • Ratio 39 Pendant Lamp - Productsheet .pdf Download
    • Ratio Pendant Lamps - Product Setting Images - Hi-res JPG .zip Download
    • Ratio Pendant Lamps - Product Solo Images - Hi-res PNG .zip Download
    • Ratio Series - Installation Guide .pdf Download