Fost PET Felt Acoustic Lamp

Introduction

Fost PET Felt Acoustic Lamp combines illumination with acoustic control. Its 75cm ribbed dome absorbs sound directly above meeting and dining tables where conversations generate noise. The PET felt shell dampens ambient sound while the white fabric interior diffuses LED light downward. Available in 11 colours to either contrast or blend with your interior.

Fost's distinctive ribbed pattern adds structural rigidity to the PET felt shell while creating its bold graphic identity. The white fabric lining stretches around the spherical LED module, gently dispersing light and creating a sense of privacy beneath the lamp. Position Fost above tables to capture sound at its source.

Available in 11 Colours

Eleven unique PET felt blends, each with its own texture and depth. Minor colour variations between batches are a natural result of the recycled content in the material.

Dark Grey

Light Grey

Dark Green

Green

Olive

Yellow

Marine

Turquoise

Brown

Beige

Pink

Images

Material

Made from recycled PET felt

The lampshade is made from PET felt, produced from recycled plastic bottles. De Vorm's single-mould pressing technique shapes a flat felt sheet into the ribbed dome form in one production step. The result is a durable, sound-absorbing shell with distinctive texture. PET felt is both recycled and recyclable.

Learn more about our PET felt technology

Fost in use

Fost Acoustic Lamp features in diverse interiors from offices to restaurants. Each installation uses the lamp's acoustic properties to improve sound comfort in spaces where people gather and converse.

Coca Cola Adria

Office Zagreb, Croatia by Brigada

Covage

Office Paris, France by Sowen Group

Specifications

Materials
- Shell
  PET Felt
- Inner inlay
  4-way stretch cloth
- Fixture
  Steel cables + ceiling mount, 3 m
- Electrical cord
  5-core, 3 m
Technical details
- Weight
  4.7 kg
- Voltage
  120V - 240V
- Power
  10W
- Light output
  1100 Lm
- Colour temperature
  Warm white, neutral white (3000K, 4000K)
- Dimmable
  DALI dimmable
- Installation guide
  Find the installation guidelines here
Colours
- Shell
  Yellow, Pink, Marine, Turquoise, Dark Green, Green, Dark Grey, Olive, Beige, Light Grey, Brown* *Due to the recycled content of the PET felt, minor colour differences may occur.
- Inner inlay
  White
- Fixture
  Metallic
- Electrical cord
  Transparent

Downloads

Product documentation
- Fost Acoustic Lamp - Installation Guide .pdf Download
- Fost PET Felt Acoustic Lamp - Product Setting Images - Hi-res JPG .zip Download
- Fost PET Felt Acoustic Lamp - Product Solo Images - Hi-res PNG .zip Download
- Fost PET Felt Acoustic Lamp - Productsheet .pdf Download
Design files
- Fost PET Felt Acoustic Lamp - 3D Files .zip Download
- Fost PET Felt Acoustic Lamp - Technical Drawing .pdf Download
Reports & certifications
- Fost PET Felt Acoustic Lampshade - LCA .pdf Download

Introduction