QUADRAN™ 365 Series UV-A/White Light Multi-LED Inspection Lamp

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.

We pride ourselves in providing fast deliveries. However inventory changes rapidly and on occasion some items may not be in stock. If you require an expedited shipment, please contact us via e-mail or call our office to confirm availability of an item. *Nominal lead times vary by product.

Product Information


  • 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

UV Switch Setting
UV-A (365 nm)
intensity at
15 inches
(38 cm) ➀
Visible light
(at minimum
2000 μW/cm2)
4,500  μW/cm2
< 2 foot-candles
(22 lux)
5 in
(13 cm)
High 8,000  μW/cm2
< 2 foot-candles
(22 lux)
6 in
(15 cm)
4,500  μW/cm2
< 2 foot-candles
(22 lux)
4 in
(10 cm)
7,000 μW/cm2
< 2 foot-candles
(22 lux)
6 in
(15 cm)


Light Source: 4 UV-A LEDs, 1 White Light LED
Lamp Style: Pistol Grip
Lamp Head (WxH): 6 x 5.5 in (15 x 14 cm)
Length: 10 in (25 cm)
Weight: 3 lb (1.36 kg)
White Light LED Intensity:
High setting: 300 foot-candles (3,229 lux)
Low setting: 10 foot-candles (108 lux)

Power Requirement

AC lamp
(QDR-365A, QDR-365BLA) 120VAC* power cord supplied with lamp
AC/DC lamp
(QDR-365MA, QDR-365MBLA) 120VAC*/12VDC
Battery Pack:

12V, NiMH (rechargeable)
Run time
High intensity: 2.5 hours (continuous)
Standard intensity: 4.5 hours (continuous)
Charge time
2 hours

* Also available in 120V, 230V, 240V and 100V versions

All UV-A intensity readings were taken with Spectroline® AccuMAX™ Series meter, and are factory set to the values shown