Light boxes, red light and monitors
Each type ranked by one like-for-like figure from the makers' own specs. Prices checked daily.
- SAD light boxesFrom £56.49 · 11 comparedBest value: Lumie Vitamin L, £4.43 per cm at 10,000 lux
- Red light devicesFrom £73 · 84 comparedBest value: Red Light Man Red-Infrared Combo Light, £1.32 per mW/cm² at 15 cm
- Glucose monitorsFrom £36.99 · 5 comparedBest value: Abbott Lingo biosensor, £3.54 per day of wear
- Blood pressure monitorsFrom £15.99 · 34 compared
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