Two hands in a knit sweater hold a glowing SOMO solar light, warm evening light

Sonnenglas Upgrade programme

New light for your favourite jar

Discover
Get your voucher

Why it works

One glass, light again and again

Sun Jar, Light Carafe, Adventure Mount: the glass and the mount stay with you. The light lives in the SOMO, and the SOMO is swappable.

When your module fades one day or you want the new generation, you only swap the SOMO. That saves you money and all of us waste. The generation 6 SOMO fits every current Sun Jar, Light Carafe and Adventure Mount, each in the matching size.

Like a deposit: your old SOMO has a value, whatever its condition. We reward it with R50 off, because we take responsibility for our products.

A Sun Jar taken apart into its three parts: jar with wire handle, SOMO solar module and screw ring

How it works

Three steps to new light

  1. Enter your number

    The serial number of your module (QR code) or an old order number from us.

  2. Get your R50 voucher

    The code appears right away, one voucher per order.

  3. Order a new SOMO

    Redeem the code in your cart. You may send us your old module, but you don't have to.

From the first version to today

Recognise your module? Every one counts

This is how the light in the lid has changed, from the first version to SOMO Gen 6. Whichever module you have: it has a value.

SOMO, as it is called today, has been around since 2022. And it also fits the very first Sonnenglas jars from 2013: your jar stays, only the light gets new. We are proud of that, because we make things to keep. Since 2013 we have made the light in the lid more efficient and brighter and kept it simple. It does not work the other way round: an old module does not fit a new jar.

  1. The first version of the solar module from below: a hand-soldered circuit board, open on the lid

    The first version

  2. A solar module of an earlier version, from below
  3. A solar module of an earlier version, from below
  4. A solar module of an earlier version, from below
  5. A solar module of an earlier version, from below
  6. A solar module of an earlier version, from below
  7. A solar module of an earlier version, from below
  8. SOMO Gen 6 from below: six LEDs in a circle

    SOMO Gen 6

From solder joint to design award: the whole story of the module

Upgrade voucher

Get R50 off

The serial number is next to the QR code on your SOMO. No serial at hand? Use an old order number.

One voucher per order, not combinable with other vouchers. Valid on a new SOMO or SOMO Mini. Each number works for one upgrade.

The underside of a generation 6 SOMO: six yellow LEDs in a circle and a QR code

Which generation do you have?

You'll spot generation 6 at once

Six LEDs in a circle and a QR code with a six-digit serial number: that's the generation 6 SOMO. Older modules are generations 1 to 5.

What generation 6 brings you

  • Infinitely dimmable
  • Up to 5 times brighter than before
  • Up to 100 hours of light on a full charge
  • Charge level indicator in the solar panel
  • USB-C charging
  • Works directly on the glass, no magnetic switch
  • Integrated bracket for hanging

Repurpose, optional

Your old module can live on

You may send us your old SOMO, but you don't have to. We reuse it or recycle it properly. Mark it "Upgrade & Repurpose" and send it to:

Germany
Sonnenglas GmbH, Department: Upgrade & Repurpose Programme, c/o Stiftung Mensch, Marschstraße 94 – Halle 2, 25704 Meldorf
Austria
SONNENGLAS Upgrade & Repurpose Programme, c/o Michael Fohringer, Sonnau 12, 8940 Liezen
Switzerland
Speedmax.li Establishment, "SONNENGLAS Upgrade & Repurpose Programme", Palduinstrasse 52, 9496 Balzers, Liechtenstein

In the shop

Your new SOMO

SOMO Classic

SOMO Classic

R 340,00 In stock

SOMO Mini

SOMO Mini

R 280,00 In stock

Incl. VAT · plus shipping (free from R 1 000)

Quick answers

Do I have to send my old module back?

No. You can if you like – then we reuse it or recycle it.

Can I combine the voucher with others?

No, one voucher per order.

Does the new SOMO fit my glass?

The generation 6 SOMO fits every current Sun Jar, Light Carafe and Adventure Mount – Classic in the large ones, Mini in the small ones.

All questions in the FAQ →