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QUADRAN™ 365 S-Series





Versatile, Dual-Intensity, Multi-LED, Broad-Beam NDT Inspection Lamps!


QUADRAN™ 365 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. For increased flexibility, a unique dual, high/low white light output control.


(click to enlarge)



  • Choice of three models with a maximum standard UV-A intensity of 4,500 μW/cm2 at 15 inches (38 cm)

  • Extremely large coverage area of up to 6.5 inches (16.5 cm), with a minimum UV-A intensity of 1,200 μW/cm2

  • Low visible light emission — less than 1 foot-candle (11 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.

  • Meet ASTM UV-A intensity and wavelength specifications for LPT and MPT

  • Certificate of compliance for both output and wavelength measurements supplied with each lamp

  • UV-absorbing spectacles and soft carrying case included


QUADRAN™ 365 S-Series lamps are available in three models (QDR-365SA, QDR-365MSA, and QDR-365MSBLA).


The QDR-365MSBLA and QDR-365MSA come with a Battery Pack for Mobility.


The QDR-365MSBLA is equipped with a faceplate containing integral black light filters that reduce the output of wavelengths longer than 400 nm.

UV-A Beam Profiles


(click to enlarge)
Typical wavelength output profi le of QUADRAN™ 365 S-Series
lamps with and without black light filters.
As the wavelength of the QUADRAN™ 365 S-Series moves into the visible light range, the black light filters signifi cantly
reduce the output of the lamp at 400 nm.

               Normalized UV Irradiance    Select Wevelengths With And Without
                                                                Internal Black Light Filter                             

(click to enlarge)


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

(click to enlarge)


QUADRAN™ 365 S-Series lamps can be quickly mounted for in-line inspections using various Spectroline® accessories (FA-100 flexible arm shown).


Also Available:

QUADRAN™ 365 MS-Series portable, battery-operated AC/DC lamp kits. Include QUADRAN™ 365 UV lamp, rechargeable NiMH battery pack, AC and DC cord sets, smart AC charger, UV-absorbing spectacles and soft carrying case.




UV-A (365 nm)
intensity at
15 inches
(38 cm) ➀
Visible light
(at minimum
2000 μW/cm2)
4,500  μW/cm2
maximum ➁
< 1 foot-candle
(11 lux)
5 in
(13 cm)
With integral black light filters
4,500  μW/cm2
maximum ➁
< 0.5 foot-candle
(5 lux)
4 in
(10 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-365SA, QDR-365SBLA 120VAC* power cord supplied with lamp

AC/DC lamp
(QDR-365MSA, QDR-365MSBLA) 120VAC*/12VDC

Battery Pack:

12V, NiMH (rechargeable)

Run time
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

➁ To address aerospace industry concerns




NDT Catalog.pdf (639 KB)

127427Standard, 8 foot (2.4 m) AC power cord
127431Extra-long, 20 foot (6.1 m) AC power cord
127435Power cord with 12V DC adapter for “M” series lamps
127922Particulate filter assembly
127944Standard faceplate
128094Faceplate with integral black light filters
Bench mount
BP-30Battery pack with 12V rechargeable NiMH battery
BR-150ASmart AC charger 
CC-400Soft carrying case
FA-100Flexible arm
FP-550Rubber bumper with Borofloat® glass
PS-200AIndustrial power supply with cord set
PS-300AIn-line power supply with cord set
W-6Bench mount with pin
WM-100Wall mounting bracket
UL-100UV-A lens
UVS-30UV-absorbing spectacles