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ATEX and IEC Ex Flame-proof Explosion Proof Lighting & Equipment
Explosion Proof Lights
Explosion Proof Motors - Motors for Hazardous Locations
Industrial and Vaporproof Emergency Failsafe Lighting
Industrial Cord Reels and Tool Taps
Industrial Work Area Heaters
Machine Vision Lights
QC Series Industrial Portable Lighting - Quick Change Mount
Rig Lights
Stadium lights
String Lights and Temporary Light Stringers
Tank Cleaning Lights
Three Phase Motor Soft Starters
Vapor Proof LED Lights
Variable Frequency Drives (VFDs)
Vehicle Mounting Plates
Workboat Light Fixtures & Lighting Equipment
Yacht Engine Room Lights
Color Changing LED RGB Lighting
Explosion Proof Cord Reels
GOLIGHT Spotlights
Larson FUTURE - Lease Lighting
Remote Area Lighting and Scene Lights
Utility Bucket Mount, Receiver Hitch & Trailer Mount Lighting
Aevum Control Lighting and Equipment - IIoT
Butane and Solvent Extraction Room Lighting and Equipment
DC to DC Transformers and Power Supplies
Explosion Proof Fans & Blowers
Explosion Proof Paint Spray Booth Approved Lights
Explosion Proof String Lights
Explosion Proof Switchgear & Controls
Fleet Service Lights and Lighting Equipment
Industrial Equipment Trailers
Industrial Handlamps & Droplights
ISO 14644/FS-209E Clean Room Lighting
LED Blasting Lights
Night Time Fishing Lights
Portable AC Power Supply Units
Portable Power Distribution Panels
Power Distribution Panels with KVA Transformers
Self-Contained Lighting
Service Pit Lighting
Solar Generators & Solar Powered Lighting
Agricultural Farm Equipment Lighting & Beacons
Explosion Proof Cameras & Surveillance Systems
Explosion Proof Emergency Lights
Explosion Proof Heaters
Garage & Gas Station Canopy Lights
LED Grow Lights
LED Lights
NDT Ultraviolet Lights
Portable Hazardous Location Lighting
Radio Communication Towers and Equipment
Salt Water Processing Equipment
Shelter & Tent Lighting
Thermal Monitoring Cameras and Systems
48V LED Equipment Lights
ATEX Rated Explosion Proof Lights
Automotive Lighting
Class Rated Signals, Alarms, and Systems
Hazardous Location Area Lights and Portable Lighting
HID Equipment Lights
Hot Work Permit Lighting and Equipment
Hunting Lights
Industrial lasers
Industrial Transformers
Light Towers
Outdoor Lighting
Remote Security and Surveillance Systems
Temporary Construction Lights
Vehicle Mounted Spotlights
Equipment & Heavy Machinery LED Light Package Fitouts
Phase Converters - Single to Three Phase
Marine Shore Power Cords and Equipment
24 Volt Military Lights
Disaster Relief / First Responders / Search & Rescue Lighting
Plastic Handcuff Key
110/120 Volt Flood Lights
Post Mount Spotlights
Magnetic Work Lights
Crank-up Light Masts
Intrinsically Safe Lights
Military Flashlights
LED Waterproof Lanterns
Work Area Lights
12 Volt Flood Lights
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Remote Control Lights
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Tow Lights
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NEW Lights and New Products
Evaporative Coolers
Police Equipment
AC/DC Transformers
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Military Spotlights 24V
Infrared Filters, Covert Covers, and Blackout IR Lenses
Military Equipment
Ultralife Batteries
Remote Control Pan Tilt Base
Larson Electronics Spotlights
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Replacement Lamps
Cords - Brackets
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HID Work Lights
HID Dive Lights
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Acro Lights HID Lights
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Xenon HID Flashlights
Powerlight Flashlight
HID Flashlights
Xenon Flashlights
LED Status Lights
Forklift Lights
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Flashlight Holder
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Fire Rescue Lights
LED Street Lights
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Gifts For Men
New 12 / 24 Volt Lights
Explosion Proof Accessories and Replacement Parts
Explosion Proof Lighting
Explosion Proof Hand Lamps (Drop Lights)
Explosion Proof Lights - Stand/Dolly
Explosion Proof Tank Lights
Explosion Proof Phones and Intercoms
Explosion Proof Extension Cords
Black Friday & Cyber Monday Specials
Crane Lights
Explosion Proof Light Rentals
General Light Rentals
Light Tower and Light Plant Rentals
Power Distribution Rentals
Power Plant Lighting
Refinery lights
Environmental Services Lights
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Chemical Plant Lights
Food Grade Safe Lights
Film and Entertainment Lights
Handheld Meters and Devices
Waste Water Treatment Lights
Mining Lights
Ship Yard Lights
Work Site Lighting

10/18/10 Metal Halide Light Towers: Mitigating Glare

Of the several trends in construction taking place today, increasing the efficiency and safety of projects are usually the chief driving factors behind them. With the current shifting of operations such as road work towards nighttime hours occurring more and more frequently as companies and municipalities seek to lessen the impact these operations have on traffic flow and nearby businesses, lighting has become an increasingly important concern. Although shifting construction operations from daytime to nighttime hours offers the ability to relieve the impact of construction on traffic patterns and the flow of customers to businesses in the impacted area, performing operations at night increases the potential for loss of productivity and accidents. Providing sufficient illumination is then the critical factor to address when mitigating these potential problems.

There are several ways companies can maintain efficiency and safety during nighttime operations, chief among these being the addition of portable lighting equipment to the jobsite. The jobsite location and type of work being performed play important roles in determining the type of lighting to be used and how it is operated. The conditions around construction sites vary widely and any lighting equipment to be used must be chosen with these conditions in mind. Proximity to residences, traffic patterns, size of the work area, proximity of workers to traffic, and the type of work being performed all play pivotal roles in determining which lighting equipment is right for a particular application.

Of all the considerations to be kept in mind when selecting lighting equipment for the jobsite, safety of both the public and the workers involved in the projects should be of the most concern. No matter how a jobsite is illuminated, it must be kept in mind that this lighting is unnatural and every effort must be made to account for any unwanted effects this lighting may produce. Some of the most common projects performed during evening hours are those involving road and utility work. These operations often involve direct interaction with traffic and as a result any lighting used on the jobsite will have an impact on this traffic. Improperly chosen or operated jobsite lighting can have serious effects on the flow of traffic which may negate any benefits this lighting produces if not addressed when this lighting is used.

Among the problems that jobsite lighting may present, glare is the most predominant. Glare is basically defined as the discomfort or interference with vision, or temporary blindness caused by the eye being exposed to light levels exceeding those it has become acclimated to. As can be imagined, this is a serious problem for the driver operating a vehicle at night and approaching a work zone that is illuminated by artificial lighting. The lighting on jobsites tends to be very intense and very powerful because of the need to provide sufficient illumination for difficult and oftentimes hazardous operations. Although this light can effectively reduce the negative effects of nighttime operations on the productivity and safety of workers, unless properly installed and directed it can increase the possibility of traffic accidents and the jobsite injuries related to them. Glare is the most cited problem associated with these accidents and driver vision difficulties when approaching construction sites must be accounted for if lighting is to be both effective and safe.

The most common method of reducing the effects of glare from jobsite illumination is placing luminaries at extended heights above the job site. By placing lamps as high as possible they are removed from the driver’s direct field of vision as they approach the jobsite. Since glare occurs most often from direct visual observation of a light source, this is a generally effective tactic although this is a much simplified explanation of how height reduces glare. For more in-depth explanations of how glare can be described and reduced consult with your local DOT or the OSHA website for more information.  Other methods of combating glare include installing supplemental hardware such as shields around lamps, diffusers, screens, and visors. Although these are sometimes helpful, they tend to lower lighting efficiency and limit light distribution, thus it is best if light positioning is done as effectively as possible to retain lighting efficiency and avoid the need for additional hardware.

For large jobsites it is usually best if the most powerful lighting equipment that is practical is used. Since reducing glare is largely dependent upon maintaining some considerable distance between the light source and the ground, more powerful lighting equipment will provide a greater degree of illumination despite this increased distance. Additionally, higher powered luminaries will reduce the number of lights required to illuminate a given area, reducing costs and the total amount of work area taken up by the lighting equipment itself. For large areas, high powered Metal Halide lamps are usually the most preferred type of lamp as they produce intense illumination that closely mimics the natural light spectrum produced by the sun. These types of lamps are often found used in equipment like Larson Electronics’s WCDE-6MHL  mobile floodlight package and are capable of illuminating very large jobsites like those found in road work projects effectively and safely.

This type of mobile light tower setup provides 6,000 watts of illumination, enough to cover over 5 acres of work area. Since the unit is fully mobile it can be positioned wherever needed to help reduce the effects of the lights on traffic patterns while still providing effective illumination for the work area. With the ability to extend the light tower to 30 feet in height, glare is further controlled by moving the lamps themselves farther out of the approaching driver’s angle of view. Each Metal Halide lamp produces over 100,000 lumens of intense light, with six lamps in total for the unit. The result is over 600,000 lumens of light total produced, which is more than enough to maintain lighting efficiency even when the unit is extended to its full height. Light towers such as these demonstrate how powerful lighting can not only effectively mitigate the problems associated with performing construction projects during evening hours, but how it can do so safely as well.

Related Categories/Products
Category/Product (click on link below for more information)
Work Area Lights
110/120 Volt Flood Lights
Light Towers
Portable Light Tower - 2 X 1000 Watt Metal Halide Lights- Covers 98,000 SF - Extends to 14 feet
Portable Light Tower - 1000 Watt Metal Halide - Covers 23,000 SF - Extends to 14 feet
Hazardous Area Light - Quadpod Mount - 2 X 400 Watt Metal Lights - Class 1 Div 2
Hazardous Area Light - Quadpod Mount - 400 Watt Metal Lights - Class 1 Div 2
1000 Watt Metal Halide Tower Security Spotlight – 110,000 Lumens
11,000 Watt Generator - Water Cooled Diesel Engine - 30' Telescoping Tower - 6 High Pressure Sodium
Hazardous Area Light - Extendible Tower W/ Wheels - 2 X 400 Watt Metal Lights - Class 1 Division 2
Hazardous Area Light - 400 Watt Metal Halide - Extendible Tower w/ Wheels - Class 1 Division 2
1500 Watt Metal Halide Tower Security Spotlight – 150,000 Lumens – 240 Foot Spotlight Beam
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