OL2A Solar Safety Light

Carmanah Obstruction is now part of Flash Technology, an SPX Corporation business.

Please pardon our progress. We are gradually merging the websites, and the content you’re seeking has already been moved.






The OL2A is a solar marking light ideal for marking railroad blue safety flags, barricades, obstacles, and other hazards in mining, obstruction, and construction zones. This compact, self-contained marking solution provides premium reliability and excellent value for use in hard-to-access locations.


  • Installs in minutes—pole and flange-mount options available
  • Low maintenance with replaceable and recyclable AA NiMH Batteries
  • Auto dusk-to-dawn function
  • Energy-Saving automatic light control feature for prolonged battery life and optimum operation
  • Peak intensity: 29 candela, with 40 user-adjustable flash patterns
  • Waterproof, UV resistant, ventilated battery compartment
  • High-efficiency solar panel and high power LED
  • 15-year life expectancy, 3-year warranty
Learn more about our solar technology


See a case study

For decades, railroads across the US have used blue flags in their yards to alert trains of workers on or near the track. Since 2008, pairing a light with these markers has been the standard. A railyard in Des Moines found that the lights they were using to comply with these regulations constantly required bulb and battery replacements. After proving that the maintenance was far too time-consuming, they searched for a more efficient solution, which they found in our OL2A.

“I have seen and used a lot of blue lights, and Carmanah’s are top of the line. Their lights work flawlessly through heat, rain, and freezing cold weather. They also take a beating, being lifted, lowered, and sometimes dropped—but they never quit working. We use Carmanah’s lights at both ends of our service track protecting our derails, and they have been in service for over five years, trouble-free. They are my first choice in blue lights; one less item to worry about.”
– Brian Sinram, Union Pacific

Read the case study

Models and Options

Color Output
The OL2A is available in various color configurations depending on your application. Check the specification sheet to see the intensity settings for each color option (note: peak intensity is dependent on your location and your selected flash pattern).
Flange Mount with ON/OFF Switch
The OL2A with an ON/OFF switch option lets you easily turn the light on and off when needed. When the switch is in the ON position, the light will charge during the day and turn on at night. When the switch is in the OFF position, the light will still charge but won't turn on at night.
Flange Mount without ON/OFF Switch
The OL2A without an ON/OFF switch is preprogrammed to turn on at night—simply mount the light where you need it and it will automatically charge during the day and turn on at nightfall.
Pole Mount
Ideal for fencing and barricade lighting applications, the pole mount OL2A easily mounts to various pole sizes and comes preprogrammed to turn on at night. Check our specification sheet for mountable pole sizes. (Note: the pole mount option is not available with an external ON/OFF switch.)

OL2A: Get A Quote

  • We are committed to protecting and respecting your privacy. For more information, please review our Privacy Policy.
  • By clicking the button below, you agree to allow Carmanah to store and process the personal information submitted above to provide you with the information you requested.

Get a free site assessment

When you decide to use our obstruction lights, our team is here to help. We offer free site assessments to determine the products you need for your project and location. You’ll get a free Energy Balance Report™ and lighting layout. Get more details and sign up now—it’s free!

Sign up now

Try out blue flag protection

Are you looking for blue lights for your railway yard? You may be eligible for a free product trial of the OL2A. Try it for 90 days, free of charge!

Try the OL2A today

Light Specifications and Documents

  • Solar Panel: 0.6 watt high-efficiency solar cells
  • Battery: Three, high-temperature NiMH AA Rated for -40° to 185° F (-40° to 85° C)
  • Light Source: High Power LED
  • Maximum Peak Intensity: 29 candela (white lantern)
  • Colors: Red, Green, White, Yellow, Blue
Click Here To See All Specs
Solar Panel0.6 watt high-efficiency solar cells
BatteryThree, high-temperature NiMH AA Rated for -40° to 185° F (-40° to 85° C)
Light SourceHigh Power LED
Maximum Peak Intensity29 candela (white lantern)
ColoursRed, Green, White, Yellow, Blue
Flash Patterns 40
Energy Management System (EMS)Intelligent microprocessor
Automatic Light Control (ALCALC 2.0 adjusts automatically to low levels of sunlight to ensure continuous operation
ProgrammingOptional infrared programmer available
ConstructionWaterproof battery compartment with GORE® vent. Premium grade, UV resistant, polycarbonate body and lens
Operating Temperature-22° to 122° F (-30° to 60° C)
Storage Temperature-40° to 176° F (-40° to 80° C)
MountingFlange or pole options
WeightFlange Mount: 0.8 lbs (0.37 kg)     Pole Mount: 0.9lbs
Wind Loading140 knots (72 m/s)
Ice Loading0.03 psi (22 kg/m2)
Shock and VibrationMIL-STD-202G
IngressIP 68 immersion, 24 hrs at 1 m (3 ft)
MIL-STD-202G immersion & damp heat cycling/
MIL-STD-810G rain & salt fog
ComplianceRoHS, WEEE, FCC, CE

Light Compliance and Certifications

Our solar- and AC/DC-powered obstruction lighting systems are designed to meet your relevant federal aviation regulations. Our thorough product testing and Intertek certifications ensure your light will meet your requirements over the long term. If you have any questions about specific lighting requirements relating to your project, please contact us.