Oceantools L5 DyeLighter®

The L 5 DyeLighter is a DC powered blacklight replacement flood lamp for subsea leak detection with up to 5 000 lumen output, supporting a range of control options.


The OceanTools L 5 DyeLighter subsea leak detection lamps utilise the latest in LED technology to give unrivalled performance to generate an output of up to 5 000 lumens at 520 530 nm ( for Rhodamine dyes, 470 480 nm ( for Fluorescein dyes, or 360 370 nm for Ultraviolet illumination.

The lamps are designed to be used with a C 3 40 dye detection camera, which contains special filters to remove background light to aid detection of the dye Lamp housings are available in two depth ratings 4000 m aluminium and 8000 m titanium with provision for a mounting bracket or clamp.


  • Rhodamine, Fluorescein or Ultraviolet dye illumination
  • Flicker free control options including RS232, RS485 and Analogue
  • Field serviceable including in-field replacement of LED board
  • 24 LED flood configuration
  • Operating life > 50,000 hours
  • Provision for mounting bracket or clamp

Technical information

  • Target dye: Rhodamine / Fluorescein / Ultraviolet
  • Excitation wavelength: 520-530nm / 470-480nm / 360-370nm
  • Light output: Up to 5,000 lumens / Up to 2,000 lumens / TBA
  • Beam angle: Flood 110º
  • Depth rating: 4000 or 8000 metres
  • Operating temperature: – 10ºC to +40ºC
  • Storage temperature: – 30ºC to +70ºC
  • Input voltage: 24VDC (12 32VDC)
  • Maximum current: 2.5A @ 24VDC
  • Dimming: RS232, RS485 or 0 5/10VDC
  • Housing material: Anodised Aluminium (4000m) or Titanium (8000m)
  • Window material: Sapphire Glass
  • External diameter: 80mm
  • Length excl connector: 102mm (4000m) or 106mm (8000m)
  • Weight in air: 0.9kg (4000m) or 1.3kg (8000m)
  • Weight in water: 0.5kg (4000m) or 0.8kg (8000m)
  • Standard connector: Subconn MCBH5M or Glenair G5507 1506 (others on request)



Related products


Oceantools L5 Subsea Light


Oceantools L7 Subsea Light


Oceantools L6 Subsea Light


Oceantools L3 Subsea Light