When the QDR-365A is in high intensity mode, the lamp provides a nominal steady-state UV-A intensity of 8,000 μW/cm2at 15 inches (38 cm). When switched to the standard intensity mode, the QDR 365A 

provides a nominal steady-state UV-A intensity of 4,500 μW/cm2 at 15 inches (38 cm). In addition, the lamp has a high/low switch to control the white light LED output.

The QDR-365BLA is equipped with a faceplate with integral black light filters that reduce the output of wavelengths longer than 400 nm. When in the high intensity mode, the lamp provides a nominal steady-state UV-A intensity of 7,000 μW/cm2 at 15 inches (38 cm). When switched to the standard intensity mode, the QDR 365BLA provides a nominal steady-state standard UV-A intensity of 4,500 μW/cm2at 15 inches (38 cm). In addition, the lamp has a high/low switch to control the white light LED output.

Quadran 365

QUADRAN™ 365  faceplate shown with (top) and without (below) integral black light filters.


  • Dual-intensity capability: High setting produces a nominal steady-state UV-A intensity as high as 8,000 μW/cm2; standard setting produces a nominal steady-state intensity of 4,500 μW/cm2, both at 15 inches (38 cm)
  • Extremely large coverage area of up to 6 inches (15 cm), with a minimum UV-A intensity of 2,000 μW/cm2
  • Low visible light emission — less than 2 foot-candles (22 lux)
  • Conveniently located rocker switches for quick and easy control of light sources
  • Built-in fan keeps LEDs cool to maintain optimum light output during extended use
  • Rubber bumper with Borofloat® glass lens protects LEDs from damage
  • Rugged, modular construction allows for easy field serviceability
  • Lamp handle pin receptacle allows for easy attachment of various Spectroline® mounting accessories for in-line inspection applications (accessories sold separately)
  • Choice of standard 8 foot (2.4 m) or extra-long 20 foot (6.1 m) heavy-duty power cord with AC plug and rubber boot. Also available: Optional industrial power supply or in-line power supply with cord sets (sold separately). All power supplies available in 120V, 230V, 240V and 100V models.
  • UV-absorbing spectacles and soft carrying case included

QDR-365BLA Model

QUADRAN™ 365 Series NDT lamps feature four ultra-hi-flux UV-A LEDs plus a convenient white light LED to quickly switch between fluorescent inspection and flaw location. A unique dual-intensity feature provides both high and standard UV-A and white light output for added versatility.

The lamps’ broad-beam configuration produces an extremely wide coverage area, making them ideal for both handheld and in-line applications. Models are available either with or without integral black light filters to meet your specific inspection requirements.

QDR-365A Model