MSL-100 Halogen Sight Light — UL-1571 Listed Stainless Steel — Northeast Controls Inc.
Non-Hazardous — UL-1571 ListedMade in USA

MSL-100 Halogen Sight Light

Series MSL — High-Intensity Halogen Illumination for Sightglasses & Sight Flow Indicators

MSL-100 stainless steel halogen sight light for sightglasses

The Series MSL-100 is a UL-1571 listed mini sight light providing high-intensity illumination for sightglasses and sight flow indicators in non-hazardous locations. Manufactured in the USA from Type 304 stainless steel with fully gasketed joints and completely machined external surfaces, the MSL-100 is water tight, dust tight, and ideal for frequent washdowns.

The Series MSL uses a powerful 120V / 100W Tungsten Halogen bulb matched with a conical reflector to provide maximum light output. Rated for 120 volts and 100 watts makes wiring simple and straightforward. An optional 24V version is available in 20W, 50W, and 100W ratings. The HI-LED upgrade version is also available — offering 40,000–45,000 hour lamp life at 93% less energy.

The MSL's clean, compact, all stainless steel design has no fins, threads, or other areas to collect dust, dirt, or bacteria — protecting batch integrity and making cleaning easier. No external power supply or transformer is required.

Electrical Specifications

ListingUL-1571
Location RatingNon-Hazardous
Standard Voltage120 VAC / 100W Tungsten Halogen
Optional Voltage24V — available in 20W, 50W, or 100W
ReflectorConical reflector for maximum light output
HI-LED OptionHigh-intensity LED engine — replaces halogen technology
ManufactureMade in the USA

Materials of Construction

Housing MaterialType 304 Stainless Steel
Switch CapBuna-N
LensAnnealed Borosilicate Pyrex
CushionKlinger Sil C-4401 Compressed Non-Asbestos
Bracket & Set ScrewType 304 Stainless Steel
Cable GlandZinc Plated Brass

Sanitary Design for Clean Environments

The Series MSL Sightglass light has been specifically designed for use in the clean areas of pharmaceutical and food and dairy industries. Manufactured in all stainless steel with fully gasketed joints and completely machined external surfaces, the water tight and dust tight Series MSL is ideal for frequent washdowns.

  • No fins, threads, or other areas to collect dust, dirt, or bacteria
  • Fully gasketed joints — water tight and dust tight
  • Completely machined external surfaces for easy cleaning
  • No external power supply or transformer required
  • Clean, compact design complements vessel aesthetics

HI-LED Upgrade — Why Switch?

Recommended

The new HI-LED Series is a high-intensity light engine designed to replace halogen technology. It is not a standard LED bulb — custom designed to save energy, provide uniform light, and extend lamp life to reduce overall operating costs. The LED array has been LM80 tested and is approved for the Energy Star program.

40,000–45,000 Hour Lamp Life

vs. 1,000–2,000 hours for halogen — approximately 4–5 years of continuous duty. Significant savings on lamp costs and labor for frequent halogen changes.

22% More Light Intensity

The HI-LED produces 22% more light intensity (candle power / LUX / lumens) than a standard 100W halogen lamp, at a fraction of the energy.

93% Less Electricity

Operates on 93% less electricity than a 100W halogen lamp — an average yearly savings of 812 kilowatts per year per fixture.

No Excessive Heat

HI-LED technology runs cool and can operate continuously without overheating the fixture housing. No heat transmission into the sightglass or vessel.

Vibration & Impact Resistant

No filament — HI-LED lamps are not affected by vibration, impact, heat, dust, or surface oils. Ideal for pumps, mixers, and mobile equipment.

Uniform Bright White Light

Custom optics provide bright, white, high-intensity uniform light with no hot spots or yellow tint. Ideal for video camera monitoring systems.

Typical Applications

Dairy Processing
Food & Beverage
Pharmaceutical
Biotechnology
Sanitary Process Lines
Corrosive Environments
Sightglass Illumination
Sight Flow Indicators

Ordering Information

Light Source

120V/100W Tungsten Halogen (standard) · HI-LED (upgrade)

Voltage

120V (standard) · 24V (optional)

Wattage (24V)

20W · 50W · 100W

MSL-100 Halogen — Pricing & Availability

1-201-419-6111 · [email protected]

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