89 North

PhotoFluor LM-75

Low-cost, high-power, ultra-stable metal-halide light source

  • Mounts directly to a microscope with a small footprint
  • High UV output and no flickering
  • Well-suited for routine fluorescence, FISH, and clinical applications

In Stock

The PhotoFluor LM-75 is the only direct-mount metal halide light source for fluorescence microscopy. With no liquid light guide and a built-in DC-ballast, the LM-75 delivers the highest possible intensity at the sample and extremely stable output. Together with pre-aligned, user-exchangeable lamp and ultra-quiet operation, the PhotoFluor LM-75 is an ideal replacement for a traditional mercury lamp.

Dimensions 6.7″ x 7.1″ x 7.5″
Weight 3.8 lbs – 5.2 lbs depending on the configuration
Lamp Lifetime 1500 hrs guaranteed
2000 hrs typical
Warm-Up and Cool Down Time 3 minutes
Output Range 340 nm – 800 nm



Direct-Mountable Design Eliminates need for a liquid light guide
User-Exchangeable Lamp Requires no user alignment
Quiet Operation Ideal for use in cramped rooms
No External Controller Saves bench space
High Output Intensity Reduced exposure times
DC-Ballast Extremely stable output
Long Lamp Life Reduced downtime
  • Fluorescence microscopy
  • FISH imaging
  • Routine fluorescence imaging
  • Tissue culture imaging
  • Wafer inspections via reflected light port

Related products

  • 89 North

    LDI-5 Laser Diode Illuminator

    The LDI-5 is the big sister of the LDI-4 laser diode illuminator.  Once again we listened to our users who asked for a paired down version of the LDI-NIR.  The LDI-5 has increased power over her little sister and expands into the near infra-red with the addition of a 730nm line.  This unit is also available with a 488nm laser for FITC/GFP and with a 577nm laser for TRITC/mCherry…or both!

    (0 reviews)
    Read More
  • 89 North

    Liquid Light Guide – LDI Accessory

    (2m long w/3 mm core) VIS (340-800nm range) – Default light guide for LDI-WF.

    (0 reviews)
    Read More
  • LDI Family Products

    LDI Family of Products

    The LDI is a multiline, solid-state laser illuminator offering up to 1000mW of output power via a multimode fiber at the price of a low power LED light engine. With feedback-controlled output stability and up to a 100:1 linear dynamic range, the LDI is the ideal light source for a wide range of applications including spinning disk confocal microscopy, structured illumination microscopy, FRAP, photoactivation / photoconversion, and PALM/STORM.

    (0 reviews)
    Read More