# K022165: Theralight UV120-2 Uva/Uvb Phototherapy System, Model UV120-2

- Pathway: 510(k) (Traditional)
- Applicant: Theralight, Inc.
- Decided: Jul 18, 2002 after 15 days
- Product code: FTC (Light, Ultraviolet, Dermatological)
- Device class: 2
- Regulation: 21 CFR 878.4630
- Recalls of this device: none
- Data: FDA decisions to Oct 25, 2026; recalls to Oct 12, 2026

## Lineage
Longest line of descent: 3 generations back to K885026 (1989). 9 ancestors in all.
291 later devices descend from it; 7 cite it directly.
0 of 301 devices in its family (counting itself) have a Class I recall.

## Predicates on the family tree (from the FDA summary)
- K020591: Bclear, Lumenis (2002)
- K885025: Houva II Uva, National Biological Corp. (1989) Summary page 1.
- K885026: Houva II Uvb, National Biological Corp. (1989) Summary page 1.

## Most influential descendants
- K024020: Theralight UV120-2 Uva/Uvb Phototherapy System (2003), 289 descendants of its own
- K040062: Levia Phototherapy System (2004), 280 descendants of its own
- K051428: Vtrac Excimer Lamp System (2005), 274 descendants of its own
- K072564: Alma Lasers Harmony XL Multi-Application Platform (2008), 266 descendants of its own
- K083899: Revlite Q-Switched ND:Yag Laser System (2009), 198 descendants of its own

## Indications for use
The TheraLight UV120-2 UVA / UVB Phototherapy System is indicated for use in PUVA photochemistry and UVB phototherapy for the treatment of psoriasis, vitiligo, atopic dermatitis (eczema), and seborrheic dermatitis.

Source page: https://510kreport.com/device/K022165
Methodology: https://510kreport.com/methodology