Home Phototherapy and Office Phototherpy from National Biological Corporation
For Physicians

Clinical Phototherapy Units

Houva 4
Houva 4® open
Houva 4
Houva 4® removable sensors

Houva 4®

Clinical Phototherapy System with DermaSense® Exposure Control

HOUVA 4® system combines high-output proven phototherapy treatment with the latest technology in UV light measurement -- available in narrowband UVB or combination UVA/UVB.

National Biological makes annual recalibration easy!

  • Integrated, Removable Sensors
  • Return your microprocessor-controlled removable sensor annually for newly recalibrated sensors with no down time or service fees

DermaSense® Technology

  • Constantly monitors electrical power levels with real time readings - NO MORE LIGHT METER READINGS
  • Optimal treatment times assured
  • HOUVA 4® controls designed never to fail in ON position

HOUVA 4® Clinical Phototherapy System Features:

  • DermaSense®microprocessor-controlled sensors
  • Sensors are removable for annual trade-in
  • Viewing window to monitor patient during treatment
  • Choice of open-top or sealed phototherapy unit
  • Safety screen snaps out for easy lamp replacement
  • Hand rail and non-skid floor for patient safety
  • Raised floor for proper treatment of lower legs
  • Perimeter flow ventilation for increased patient comfort
  • Safety interlock automatically shuts unit off when
    door of HOUVA 4® phototherapy system is open
  • "Watchdog" circuitry automatically shuts off unit if potential malfunction detected
  • The complete phototherapy system that will change your practice

Three Houva 4® Configurations Available

  • 48 Narrow Band UVB lamps
  • Combination Unit with 24 Narrow Band UVB and 24 UVA lamps
  • 48 UVA-1 lamps
  • Measuring devices are included with all units

Treatments are covered by most insurance carriers



Electrical Rating
  • 208 VAC, 50/60 Hz, 24 A per leg
  • Requires a 30A disconnect
  • 10-foot, 4 conductor #10 AWG power cable supplied
  • Listed with SGS
  • National Biological is Quality System Certified to ISO-13485
  • 46" W x 49" D x 87" H (117 cm x 124 cm x 221 cm)
International Product Specifications
  • Optional international base 220-240 volts, 50/60 Hz


  • All parts (excluding lamps) and labor carry a full 5-year warranty
  • Extended warranties available
  • Lamps carry a 90 day warranty

Standard Support Any Phototherapy Unit

  • Unlimited Customer Service
  • All major credit cards accepted

Contact us to discuss a Houva 4® phototherapy unit today.

Federal law restricts the sale of this device by or on the order of a physician. We are the only company certified to ship phototherapy units to Canada.

TUV GSA Compliance Team