Signature IV

Signature IV Sauna Cabin

205 cm x 142 cm x 197 cm

10 heaters

Signature IV

The use of the Sunlighten Signature IV infrared sauna offers clinically proven health benefits, reducing blood pressure, aiding in detoxification, supporting weight loss, and more – all of this can be enjoyed in the comfort of your own home. Nine emitters provide far infrared heat in the most effective quality and quantity thanks to our patented design, resulting in practically no electromagnetic radiation (EMF) in the sauna. The Signature IV infrared sauna is designed for four people, and the bench can be removed to allow for the full floor space to be used for yoga or stretching exercises. Acoustic vibration therapy and light color therapy are also available as optional premium accessories.

View the Signature IV in 3D

  1. Chromotherapy and sound system. Your sauna includes chromotherapy lighting that does more than change color; it works with various energy points to help rebalance your body and mind. Enjoy the quiet or turn on your favorite music and enjoy the built-in premium sound system.
  2. 10 patented SoloCarbon infrared heaters. Immerse yourself in the highest quality and quantity of far infrared heat available with our perfected SoloCarbon heating technology.
  3. Simplicity and affordability. The simple push of a button begins your sauna session, simply and easily. With no bells and whistles or gadgets to fuss with, the Signature makes saunaing completely convenient. You can even set the timer to preheat. And Signature’s pricing makes it an affordable wellness tool for your home.
  4. A peaceful oasis. Transform a small space into a relaxing personal wellness oasis for one with the Signature IV far infrared sauna. Inside your sauna, peace is palpable. You close the door and enjoy your own escape from the world for a while. An escape that gifts you with renewed energy and healing for your mind, body and spirit.
  5. Add-on sound therapy. You can unwind and de-stress even more in your sauna with a sound therapy add-on. This sonic technology combines the healing effects of sound and vibration therapy to relax your body and calm your mind. Sound-amplifying discs mounted under the bench utilize sound as a therapy modality.
  6. Magne-seal locking. Our powerful Magne-seal locking method makes assembly easy and keeps the heat in with no unsightly screws or nails.

Signature IV Specifications


Width: 205 cm
Depth: 142 cm
Height: 197 cm


Basswood – 314 kg
Eucalyptus – 353 kg


10 FIR


Width: 189 cm
Depth: 127 cm
Height: 178 cm


240V – 2750W – 15A


Width: 189 cm
Depth: 48 cm
Height: 51 cm



360 degree sauna interior view

Compare Far Infrared Saunas

Signature I

96 cm W
101 cm D

197 cm H
71,2 cm Door Width

Signature II

130 cm W
117 cm D

197 cm H
71,2 cm Door Width

Signature III

158 cm W
117 cm D

197 cm H
71,2 cm Door Width

Signature IV

205 cm W
142 cm D

197 cm H
71,2 cm Door Width

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