Sunlighten Amplify II vs Clearlight Premier IS-2
Clearlight Premier IS-2 scores highest overall, while Sunlighten Amplify II is the most affordable. These products suit different buyers, so weigh the criteria that matter most for your setup rather than the headline score alone.
Heater power:Clearlight Premier IS-2Max temperature:Sunlighten Amplify II
| 2 products |  Sunlighten Sunlighten Amplify II |  Clearlight Clearlight Premier IS-2 |
|---|---|---|
| Price | $5,300 | $5,799 |
| Overall score | 8.2 | 8.7 |
| Type | Full-spectrum (5 FIR + 3x500W full-spectrum heaters) | Far-infrared |
| Heater power (kW) | 1,880W total draw | ~2.2 kW |
| Max temperature (°F) | 170°F (in ideal conditions) | 125–145 °F |
| Capacity (persons) | 2 persons | 2 persons |
| Voltage | 120V (NEMA 5-20) | 120V / 20A (config) |
| Amperage (A) | 15.67A draw; dedicated 20A circuit required | 20 A |
| Wood | Eucalyptus or Basswood | Cedar or basswood |
| Warm-up time (min) | — | 20–30 min |
Sunlighten
Sunlighten Amplify II
Best for High-heat full-spectrum sessions on a standard 120V circuit
$5,300
Clearlight
Clearlight Premier IS-2
Best for Best-value indoor infrared from a trusted brand
$5,799$6,299
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