Register Here | Login | My Account | Shopping Cart | Customer Service | Search| Items in Cart (0) | Quotes (0)
Call 1-800-369-6671
(Military/Intl Sales - 214-616-6180)
LIGHT TOWERS IN STOCK
       
 

Vast Inventory for Fast Shipping. Custom Builds Available, Rentals and Sales.
Most items in stock for fast shipping!! UPS Ship Map Credit cards & Paypal Accepted
Home - Articles You're NOT logged in, Please log in   

Search:
Company Information

Product #:

         
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
Megatowerâ„¢
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
**********    
**********    
Boat Spotlights
New Boat Lights
HID Boat Lights
Boat Dock Lights
**********    
Remote Control Lights
Control Lights
Tow Lights
Magnetic Control Lights
**********    
NEW Lights and New Products
Evaporative Coolers
Police Equipment
AC/DC Transformers
Power Supplies
**********    
Military Spotlights 24V
Infrared Filters, Covert Covers, and Blackout IR Lenses
Military Equipment
Ultralife Batteries
Remote Control Pan Tilt Base
**********    
Larson Electronics Spotlights
Larson Electronics Parts
Replacement Lamps
Cords - Brackets
Portable Wheeled Generators
Non-Hazardous Location Extension Cords / Plugs / Outlets
**********    
HID Work Lights
HID Dive Lights
HID Off Road Lights
Acro Lights HID Lights
Halogen Lights
**********    
Acro Light Flashlight
Xenon HID Flashlights
Powerlight Flashlight
HID Flashlights
Xenon Flashlights
**********    
LED Status Lights
Forklift Lights
Tractor Lights
HID Post Mount Lights
Roof Mount Lights
Post Mount Light parts
**********    
Flashlight Holder
Magnet Spotlight Base
Tripods-Magnetic Base
**********    
Recharging Spotlights
Fire Rescue Lights
LED Street Lights
Utility Lights
**********    
Hazard Lights
Strobe Lights - Battery Operated
Strobes & Beacons
Strobe Light Bars
**********    
Headlights - Headlamps - Hard Hat Lights
Flashlights
**********    
Suction Mount Lights
Magnetic Spotlights
12/24 Volt Spotlights
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
Aerospace Lights
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
         

   
01/12/17 What Happens to LED Lights in a Vacuum?

Article - January 12, 2016 By LarsonElectronics.com

Ultraviolet LED emitter bar - 12 watts

What Happens to LED Lights in a Vacuum?

Successful NASA projects revealed that LED lights work in space. In fact, according to Robert Frost, instructor and flight controller in NASA, astronauts use a wide range of lights in space, including incandescent bulbs on space suit helmets and high intensity metal halide spotlights on the International Space Station. Unlike the fixtures on Earth, luminaries designed for space are specially engineered with materials and mechanisms that manage heat efficiently.


Thermal Management Solutions

In space, the transfer of heat is limited. By comparison, on Earth heat is dissipated through the following processes: convection, conduction and radiation. Convection and conduction do not occur in microgravity settings (such as space). Therefore, scientists must rely on a unique heat dissipating process that uses radiation. During space missions, astronauts typically use radiators with large, metallic surface areas that are shaded and pointed away from the sun (some cooling devices are linked to coolant loops).

Previously, NASA invented several methods for managing heat in electronics, including LEDs, in order to keep them cool and operating consistently. In space, astronauts utilize special heat pipes that transfers heat from a hot location to a cooler (remote) area. The device is made up of a tightly sealed tube without air and liquid is added through a partial vacuum. When the liquid comes in contact with the hot surface, it evaporates into a vapor. The cycle, called capillary action, is completed when the vapor comes in contact with a cool surface, where it condenses back into a liquid, releasing the stored heat to the cold surface. One should carefully note that this mechanism does not require any moving parts, and the process can be repeated as often as needed.

This invention was first tested during an experiment titled The Constrained Vapor Bubble in the International Space Station. In the prototype, researchers used a cuvette pipe (quartz glass tube) filled with pentane. Scientists found that microgravity environments made natural convection- that normally takes place on Earth, difficult to facilitate in space. Furthermore, direct radiation is the only way heat pipes manage heat efficiently in such environments.


LED Applications in Space

LED lights are being used by NASA to improve vegetative crop yield rates in space. Initially, the organization teamed up with the University of Wisconsin and the Wisconsin Center for Space Automation and Robotics to conduct tests on LEDs. NASA scientists concluded that red light with a wavelength range of 630-660 nm, is effective for stem and leaf growth. It is also applicable in seed germination and flowering. Blue light (400-520 nm) contributes to chlorophyll levels inside plants; though this type of light must be regulated closely to prevent overexposure. Far red light (720-740 nm) promotes leaf growth, while reducing conventional flowering times.

A report from Purdue University titled Sole-Source Lighting for Controlled-Environment Agriculture, cited the following advantages of luminaries for such applications: LEDs do not need ballasts, compared to traditional luminaries, such as fluorescents; the lights generate minimal heat with flexible mounting options- preferably close to the plants, and the fixtures are flexible in generating a wide range of wavelengths for optimal plant growth.

NASA is also using LEDs to correct the sleeping patterns of astronauts in space. In an $11.2 million project, the organization plans to outfit part of the International Space Station with LED fixtures. The luminaries will support natural circadian rhythm cycles by emitting blue light in the morning, white light during daytime operations and red light during the evening. The application of blue light is designed to suppress melatonin production in humans, stimulating sunrise and early morning conditions on Earth. On the other hand, red light will be utilized to promote drowsiness through the production of melatonin. The LED lights may also help ease reliance on medication for sleeping, which is common on the spacecraft.





Related Categories/Products
Category/Product (click on link below for more information)
LED Light Towers
LED Bulbs
LED Work Lights
LED Machine Lights
LED Tubes
LED Mining Lights
LED Lights - Mounts
LED Retrofits & Upgrades
Home | Contact Us | Return Policy | Privacy Policy | Security Policy | Copyright © 2006-2018. All Rights Reserved.