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Installed infrared cabin

Sun Home Luminar 2

2-person outdoor full-spectrum infrared cabin, Canadian red cedar interior, aluminum exterior, dedicated 240V / 20A circuit, without the optional red-light add-on

$10,999US price, checked Oct 13, 2026

Two-person full-spectrum cabin built for year-round outdoor use

Check price at Sun Home Saunas Full review →

Installed infrared cabin

Sunlighten Amplify RED III

3-person infrared cabin with integrated red-light configuration

$8,599US price, checked Oct 13, 2026

Three-person cabin with built-in red light that needs a 240 V circuit

Check price at Sunlighten Full review →

Criterion	Sun Home Luminar 2	Sunlighten Amplify RED III
US price	$10,999Checked Oct 13, 2026 · Price details in the review	$8,599Checked Oct 13, 2026 · Price details in the review
Three-year ownership estimate	$10,999 Incomplete known subtotal. Not included: installation, other annual costs, energy use.	$8,599 Incomplete known subtotal. Not included: installation, energy use.
Choose if	Two adults without indoor space who can set the 970 lb cabin on a level, draining pad and run a new 240 V, 20 A circuit to it.	Two or three people who want red light built into their sauna and can add a dedicated 240 V, 20 A circuit.
Main trade-off	You pay for the electrician and the pad on top of the price, warranty labor and shipping end after 90 days, and you can't return it once it's unpacked.	You pay $1,600 extra for red light with no published wavelength or dose, and opened saunas can't be returned.
Key specifications	Heaters: 6 full-spectrum heaters (4 behind the backrests, 2 on the glass wall) and 3 far-infrared heaters (2 calf panels, 1 floor). The wattage of each heater isn't stated Electrical: 240 V, 4,800 W, 20 A. NEMA L6-20P twist-lock plug on a dedicated GFCI-protected circuit. Licensed electrician required Temperature and warm-up: Up to 170°F. Warm-up takes 15 to 20 min, or 60+ min below 40°F Session guidance: Control range 90 to 170°F. The manual gives typical sessions of 20 to 45 min, with a 45 min maximum. After 2 hours of continuous use, it says to shut the sauna down for at least an hour Outdoor rating: Rated for year-round outdoor use. It runs below 25°F but takes longer to warm up in the cold. The roof isn't built to carry more than a foot of snow Weight: 970 lb assembled. The pad must support at least 1,500 lb Controls and extras: Digital control panel, app control over 2.4 GHz Wi-Fi, Bluetooth and USB audio, chromotherapy lighting, oxygen ionizer and a soft-close door	Heaters: 7 far-infrared, 5 near-infrared red-light and 3 full-spectrum heaters. The red light's wavelength and output aren't stated Electrical: 240 V, 3,465 W and 14.44 A, on a dedicated 20 A circuit with a NEMA 6-20R outlet Inside and bench: 56.8 W × 39.9 D × 70.3 H in inside. The bench is 56.6 W × 20.2 D in and 19.5 in off the floor Top temperature: Up to 170°F, which Sunlighten qualifies with "in ideal conditions" Heat-up: Sunlighten suggests preheating for 45 to 60 minutes. It says the cabin warms about one degree per minute, depending on room temperature Weight and delivery: 710 lb in two to three boxes on a pallet, left in your garage or driveway. Two people assemble it in about 2 to 3 hours Extras: Chromotherapy lighting and a sound system Options: The 2-person Amplify RED II costs $900 less and the 4-person Amplify RED IV $1,700 more. Without red light, the same-size Amplify III Eucalyptus is $1,600 less
Exact variant	2-person outdoor full-spectrum infrared cabin, Canadian red cedar interior, aluminum exterior, dedicated 240V / 20A circuit, without the optional red-light add-on	3-person infrared cabin with integrated red-light configuration
Dimensions	Exterior: 57 W × 51.5 D × 82.7 H in. Interior: 53.4 W × 47.2 D × 71.7 H in. The door opening is 24 in. The cabin weighs 970 lb assembled. It ships in one 65 × 32 × 89 in crate with a gross weight of 975 lb.	Outside: 62.3 W × 45.9 D × 77.7 H in, including 2 in feet. Inside: 56.8 W × 39.9 D × 70.3 H in. The door opening is 28 in. The bench is 56.6 in wide and 20.2 in deep, 19.5 in off the floor. The eucalyptus model weighs 710 lb. Sunlighten says it fits under a standard 8 ft ceiling and its panels fit through a standard 30 in doorway. The product page gives no clearance to leave around the cabin.
Installation	It needs a dedicated 240 V, 20 A circuit with GFCI protection. It also needs a weatherproof NEMA L6-20R twist-lock receptacle within 6 ft of the cord exit. Sun Home says a licensed electrician is required. The manual says not to plug it into a standard 120 V household outlet or share the outlet with other appliances. The 8 ft cord exits the roof at the back wall. The pad must be flat, level and draining, extend at least 6 in beyond the footprint and support at least 1,500 lb. Leave 4 to 6 in behind and beside the cabin, 20 to 24 in above the roof, and room for the door to swing fully open. The product page says to install it at least 5 ft from other electrical devices. Placing it within 5 ft of a water source that produces liquid or vapor voids the warranty. The owner's manual offers a free roof security cable kit, requested by email, to anchor the sauna. It doesn't say at what wind speed the kit is needed. The sauna arrives palletized at the curb in one crate. Sun Home says to set aside half a day and two or more people for assembly.	It needs a dedicated 240 V, 20 A circuit and a NEMA 6-20R outlet for its 6-20P plug. Sunlighten tells you to book your electrician early so the outlet is ready on build day. Its FAQ says a power strip or converter voids the warranty. The warranty page also rules out extension cords and non-dedicated circuits. It requires at least 5 ft between the sauna and any source of water or vapor. The product page doesn't mention GFCI protection or clearance around the cabin. Freight arrives in two to three large boxes on a pallet, left in your garage or on a flat, paved driveway spot. The carrier calls first to schedule. The panels lock together with Magne-Seal corners, without screws or nails. Sunlighten says two people take about 2 to 3 hours. Its guides page has manuals and assembly guides for the standard Amplify II, III and IV, but none listed under Amplify RED.
Materials	The interior is Canadian red cedar. The exterior has what Sun Home calls aerospace-grade aluminum cladding, a stainless steel roof and double-pane black glass. A fitted all-weather cover is included.	Eucalyptus tongue-and-groove boards on solid wood framing, which Sunlighten calls sustainably sourced and non-toxic. Basswood and Obsidian finishes were marked not available for this model. One line on the page says its saunas are made of basswood, which conflicts with the eucalyptus selection. Sunlighten says the glue on its boards was third-party tested by Franklin International.
Warranty	These terms cover residential purchases in the US on or after March 2, 2026. Cabinetry (benches, floor grates and heater cover frames) and heaters get a limited lifetime warranty. That coverage applies for up to seven years, which the terms give as their expected useful life. The exterior cabin and the controls (control panel and power box) get 3 years each. LED lighting, glass doors and audio get 1 year. For the first 90 days after delivery, warranty service includes replacement parts, labor and shipping. After that, you pay shipping and labor. Only the original purchaser is covered. Weather events, normal weathering, cosmetic damage and water exposure are excluded. Lacking a dedicated outlet, or placing the sauna within 5 ft of a water source, voids the warranty. The included cover is optional, and not using it doesn't by itself void the warranty. Commercial use carries shorter terms.	Sunlighten's warranty page groups Amplify with its other cabin saunas. For home use, the cabinet and heaters get 7 years, the controls 3 years, and the glass door and audio 1 year. Cabinetry includes benches, floor grates and heater cover frames. Controls include the control pad, in-sauna tablet and power box. Commercial use gets 5 years on the cabinet and heaters and 1 year on everything else. The cabin terms don't single out the red-light heaters. The general terms cover replacement parts only. Labor and technician costs aren't covered. You pay all freight, including on parts shipped for service. Coverage is for the original buyer only and ends if you sell the sauna. It's void on a power strip, extension cord, converter or non-dedicated circuit, or within 5 ft of water. Outdoors, the plastic sheet of the sauna cover (sold separately) must stay on at all times, even during sessions. The sauna must be bought and put into use within a year of its manufacture date. The page shows no version or effective date.
Returns	You can return an unused sauna in its original, unopened packaging within 30 days of delivery. Sun Home deducts a 25% restocking fee plus outbound and inbound shipping, even on free-shipping orders. It doesn't accept uncrated, assembled or used saunas. Every cancellation carries a 3% fee. You can cancel an in-stock order within 24 hours. After that, a 25% restocking fee and possibly roundtrip shipping apply. Refunds are issued within 21 days of Sun Home receiving the return. Inspect the shipment before the delivery driver leaves.	Non-custom saunas can be returned within 30 days of delivery, but only unopened in the original packaging. Opened saunas can't be returned. Fees can include a 3% administrative fee, a $499 restocking fee per Amplify sauna, storage fees and return shipping. Cancelling before it ships can cost the 3% fee, plus storage fees if it has to be rerouted.
Unresolved questions	What the electrician, receptacle and pad will cost at your site The wattage of each heater Average energy use per session Whether it carries an ETL, UL or CSA safety listing, and the file number if so The test method or report behind the <0.5 mG EMF figure Its wind rating, and when you need the roof security cable kit Whether liftgate service or delivery past the curb is available	The red-light heaters' wavelength and irradiance, and whether they run at the same time as the far-infrared heaters Average power use during a session, and so the yearly running cost Whether the circuit needs GFCI protection, and how much clearance to leave around the cabin What the linked Amplify RED III spec sheet adds, since it couldn't be opened on Oct 13, 2026 Whether an ETL listing covers this exact model, and its file number What the Vitatech EMF test measured, at what distance, and whether it included the red-light heaters Whether it's in stock, since the product page and Sunlighten's store listing disagreed The lifespan and replacement price of the full-spectrum and red-light heaters Whether the $8,599 sale price lasts past the October 14 event

These comparisons use published specifications, not head-to-head tests. Prices and terms are dated. Unknown costs are not zero. Check the exact variant before you buy.