Fast delivery
Free shipping in the Netherlands
Designed and produced in the Netherlands



Our Transformer 150 watts can easily heat 3 to 6 chairs. Simply connect our heated cushions to the mains using the transformer and enjoy the warmth.
150 Watt
300 Watt
  • Order by 22:00? Delivered tomorrow.
  • Plug & play. Use it right away
  • Made in the Netherlands.


To connect your sofa cushions to an electrical outlet.

Product description

Power your heated outdoor space with our Transformer 150 watts. This powerful unit can heat up to six seats, meaning you can enjoy warm and comfortable seating with friends and family.


We’ve got your back! All of our standard products are backed by our trusty 2-year warranty, so you can rest assured that your warmth and comfort is secure with Sit & Heat.

Shipping & Returns

We will deliver your transformer as soon as possible! Did you just order a transformer? Then we'll make sure you receive it within two business days. Did you order your transformer along with your sofa cushions? Then of course you'll get everything delivered at the same time!


The Transformer 150 watt power supply unit is designed to meet your heating needs. Measuring 193 x 68 x 40 mm and weighing 1300 grams, this unit is built to last and is water resistant with an IP67 rating. It operates on a voltage range of 85-265V AC and outputs 12 Volts DC and 5V USB. With an output of 150 watts and a frequency of 50/60 Hz, it has two outputs and can support up to 3 heated seats for both back and seat or up to 6 heated seats for seat only. Moreover, it comes with different plug options to ensure compatibility with outlets in different regions (EU / UK / US / AUS).


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