Optical Through the Air Communication -- Preface
... experimenting with these latest semiconductor devices since about 1988. Their small size and high efficiency make them very suitable for some applications. They are mostly used in optical fiber communications. Instead of being grown as single chip emitters, these devices are fabricated into large ar ...
... experimenting with these latest semiconductor devices since about 1988. Their small size and high efficiency make them very suitable for some applications. They are mostly used in optical fiber communications. Instead of being grown as single chip emitters, these devices are fabricated into large ar ...
Light is productive Enhance operations in industrial facilities
... —— Because of the age of most refineries and refining operations in North America, the most common light sources are high pressure sodium, metal halide, and fluorescent; significant energy saving opportunities exists for modernization —— Long life sources in both traditional and new lighting technol ...
... —— Because of the age of most refineries and refining operations in North America, the most common light sources are high pressure sodium, metal halide, and fluorescent; significant energy saving opportunities exists for modernization —— Long life sources in both traditional and new lighting technol ...
Construct an LED Headlamp
... observed. While the absolute maximum rated current for these LEDs is 30mA, significant efficiency gains can be had by operating below this maximum. While current prices preclude taking this to the extreme of operating huge numbers of LEDs at 3mA each, the reduction from 30mA to 20mA will net an effi ...
... observed. While the absolute maximum rated current for these LEDs is 30mA, significant efficiency gains can be had by operating below this maximum. While current prices preclude taking this to the extreme of operating huge numbers of LEDs at 3mA each, the reduction from 30mA to 20mA will net an effi ...
Considerations for lighting in the built
... disruption to their circadian rhythm, both with respect to the ambient day/night cycle, and when shifts change and the personal rhythm must be re-entrained to meet a different schedule. In industrialised nations it is estimated that up to 20% of the workforce are involved in some kind of shift work, ...
... disruption to their circadian rhythm, both with respect to the ambient day/night cycle, and when shifts change and the personal rhythm must be re-entrained to meet a different schedule. In industrialised nations it is estimated that up to 20% of the workforce are involved in some kind of shift work, ...
UW FSDG 20-16U Lighting - Capital Planning and Development
... Select interior lighting to achieve initial system efficiencies greater than 64 lumens per watt. Efficiency can be calculated as follows: ...
... Select interior lighting to achieve initial system efficiencies greater than 64 lumens per watt. Efficiency can be calculated as follows: ...
HID Distributor Training - Universal Lighting Technologies
... Primarily used for indoor down lighting applications where quiet operation is essential. All of the components are enclosed in a fluorescent-style ballast can and are thermally protected. Available for most lamp types up to 400W ...
... Primarily used for indoor down lighting applications where quiet operation is essential. All of the components are enclosed in a fluorescent-style ballast can and are thermally protected. Available for most lamp types up to 400W ...
Spec Sheet - Celestial Lighting
... Heat Management and Rated Life • LEDs operate on low current • Low current generates minimal heat, preserving LED life without need for elaborate heat sink • Rated life is 50,000 hours, with 70% lumen maintenance, when used in normal environmental conditions • Long life results in low maintenanc ...
... Heat Management and Rated Life • LEDs operate on low current • Low current generates minimal heat, preserving LED life without need for elaborate heat sink • Rated life is 50,000 hours, with 70% lumen maintenance, when used in normal environmental conditions • Long life results in low maintenanc ...
KL-PRO-B - Kemps Architectural Lighting
... • Extensive range of Whites to suit hospitality, retail, office and residential projects • 2282 Lumens (Based on 4000K @ 17W) 2150 Lumens (Based on 3000K @ 17W) • Excellent Colour Rendering • The highest quality LEDs are engineered into our Proteus range • Various beam angles available for most a ...
... • Extensive range of Whites to suit hospitality, retail, office and residential projects • 2282 Lumens (Based on 4000K @ 17W) 2150 Lumens (Based on 3000K @ 17W) • Excellent Colour Rendering • The highest quality LEDs are engineered into our Proteus range • Various beam angles available for most a ...
Basic Troubleshooting Methods for HID Fixtures
... procedures. If a large percentage of lamps fail to operate in a new installation, it will generally be found that operating conditions are causing the trouble. In this case, the entire electrical installation should be checked thoroughly. Because high voltages are common in HID lighting systems, it ...
... procedures. If a large percentage of lamps fail to operate in a new installation, it will generally be found that operating conditions are causing the trouble. In this case, the entire electrical installation should be checked thoroughly. Because high voltages are common in HID lighting systems, it ...
12V 24V LED Dimmers DIM11, DIM12, DIM13, DIM14
... The DIM11, DIM12, DIM13 and DIM14 are self-contained highside dimmer modules designed to control the brightness of lowvoltage incandescent (filament), halogen or LED lamps rated up to 10A. Operating from 9 to 32V DC, and offering a positive output, the modules can be used in a wide variety of applic ...
... The DIM11, DIM12, DIM13 and DIM14 are self-contained highside dimmer modules designed to control the brightness of lowvoltage incandescent (filament), halogen or LED lamps rated up to 10A. Operating from 9 to 32V DC, and offering a positive output, the modules can be used in a wide variety of applic ...
extending lifetime on t5 fluorescent lamp using an electronic ballast
... energy, without losing the comfort and them advantages that it provides. It means to reduce the consumption, reducing costs, without losing, at any moment, the efficiency and the quality of the services. For the increase of the efficiency in lighting system some alterations are accomplished currentl ...
... energy, without losing the comfort and them advantages that it provides. It means to reduce the consumption, reducing costs, without losing, at any moment, the efficiency and the quality of the services. For the increase of the efficiency in lighting system some alterations are accomplished currentl ...
Bright ideas-custom designed
... customised solutions in the field of solid state lighting. A various range of chips, chip and packaging combinations will provide you the right solution for your application. Our custom designed LED-modules for OEMs are an efficient way for your radiation or light source. Please contact us with your ...
... customised solutions in the field of solid state lighting. A various range of chips, chip and packaging combinations will provide you the right solution for your application. Our custom designed LED-modules for OEMs are an efficient way for your radiation or light source. Please contact us with your ...
HD Recessed Planning Pad Front
... washing, distance from walls (X) is equal to the distance between fixtures (Y). ...
... washing, distance from walls (X) is equal to the distance between fixtures (Y). ...
Authorized Dealer: – SIEMENS LTD, WAGO TERMINALS, TEKNIC
... Email: - [email protected] / [email protected] Website: - www.mnassociates.co.in ...
... Email: - [email protected] / [email protected] Website: - www.mnassociates.co.in ...
AND8146/D High Current LED − Capacitive Drop Drive
... manufacturer. The process of keeping the proper voltage and current through the LEDs is called ballasting. Ballasting techniques are used extensively in other lighting applications like fluorescent lamps. ...
... manufacturer. The process of keeping the proper voltage and current through the LEDs is called ballasting. Ballasting techniques are used extensively in other lighting applications like fluorescent lamps. ...
QUICKTRONIC® POWERSENSE® T8 Universal
... failed lamps, faulty wiring or loose connections, and shutting down. When the problem is corrected, the system restarts automatically. ...
... failed lamps, faulty wiring or loose connections, and shutting down. When the problem is corrected, the system restarts automatically. ...
Lighting and Heating control
... 40 to 400 W. It must also allow use with low voltage halogen lamps with ferromagnetic transformer (non totoidal) up to 400 VA. Pressing the center button must allow switching on or switching off, whie variation must be achieved by rotating a knob. A potentiometer for adjusting the minimum level of b ...
... 40 to 400 W. It must also allow use with low voltage halogen lamps with ferromagnetic transformer (non totoidal) up to 400 VA. Pressing the center button must allow switching on or switching off, whie variation must be achieved by rotating a knob. A potentiometer for adjusting the minimum level of b ...
Lamp Operation Basics
... energy consumption. The reverse is also true: the lower the ballast factor, the lower the light output and the lower the energy consumption. The range of 0.6 to 1.2 is considered a safe operational range. Ballasts may have different ballast factors for different lamps. For example, a two-lamp ballas ...
... energy consumption. The reverse is also true: the lower the ballast factor, the lower the light output and the lower the energy consumption. The range of 0.6 to 1.2 is considered a safe operational range. Ballasts may have different ballast factors for different lamps. For example, a two-lamp ballas ...
see Figure 4
... wire and ground (green or bare copper). Your should get a reading of about 117 volts ac. Now probe between the white wire and ground. The reading should be about zero. Turn OFF the light switch. If you still get a reading of about 117 V ac between the black wire and ground with the light switch off, ...
... wire and ground (green or bare copper). Your should get a reading of about 117 volts ac. Now probe between the white wire and ground. The reading should be about zero. Turn OFF the light switch. If you still get a reading of about 117 V ac between the black wire and ground with the light switch off, ...
Disturbance Sources
... DC LIGHT SOURCES The main DC light sources found in remote control environments are sunlight and tungsten (incandescent) bulbs. These kind of disturbance sources will cause a DC current in the detector inside the module, which in turn will produce white noise in the receiver circuit. The negative in ...
... DC LIGHT SOURCES The main DC light sources found in remote control environments are sunlight and tungsten (incandescent) bulbs. These kind of disturbance sources will cause a DC current in the detector inside the module, which in turn will produce white noise in the receiver circuit. The negative in ...
NFU 721 LED Array.qxd
... 6. Alternative method - measuring the striking voltages for the LED array Instead of the plugtop power supply, connect a 0 to 5V d.c. variable, regulated power supply to the LED array. Note: It is the responsibility of the user to check that the power supply gives: - a maximum of 5 volts - the corr ...
... 6. Alternative method - measuring the striking voltages for the LED array Instead of the plugtop power supply, connect a 0 to 5V d.c. variable, regulated power supply to the LED array. Note: It is the responsibility of the user to check that the power supply gives: - a maximum of 5 volts - the corr ...
Basic Troubleshooting Methods for HID Fixtures
... conditions are causing the trouble. In this case, the entire electrical installation should be checked thoroughly. Because high voltages are common in HID lighting systems, it is recommended that only qualified personnel attempt to make electrical measurements or take corrective measures and tha ...
... conditions are causing the trouble. In this case, the entire electrical installation should be checked thoroughly. Because high voltages are common in HID lighting systems, it is recommended that only qualified personnel attempt to make electrical measurements or take corrective measures and tha ...
Automatic Lighting Control for Enegy Savings
... Automatic lighting control systems are now available that will economically provide light when and where it is needed (Figure 1). Electronic sensors and microprocessor-based energy controllers will contribute to cost savings by regulating light output according to available daylight and lamp aging. ...
... Automatic lighting control systems are now available that will economically provide light when and where it is needed (Figure 1). Electronic sensors and microprocessor-based energy controllers will contribute to cost savings by regulating light output according to available daylight and lamp aging. ...
Schedule LC
... of the billing period and 30 days, but shall not be less than $3.00 per bill for the billing period. Special Conditions 1. Customer Accounts billed under this schedule are subject to additional charges as stated in the Conditions and Surcharges. ...
... of the billing period and 30 days, but shall not be less than $3.00 per bill for the billing period. Special Conditions 1. Customer Accounts billed under this schedule are subject to additional charges as stated in the Conditions and Surcharges. ...
Emergency Lighting Products
... some cases the required emergency lighting equipment is considered at the design stage. However, many LED luminaires have to be ‘converted’ to have the emergency lighting ...
... some cases the required emergency lighting equipment is considered at the design stage. However, many LED luminaires have to be ‘converted’ to have the emergency lighting ...
LED lamp
An LED lamp is a light-emitting diode (LED) product that is assembled into a lamp (or light bulb) for use in lighting fixtures. LED lamps have a lifespan and electrical efficiency that is several times better than incandescent lamps, and significantly better than most fluorescent lamps, with some chips able to emit more than 100 lumens per watt. The LED lamp market is projected to grow by more than twelve-fold over the next decade, from $2 billion in the beginning of 2014 to $25 billion in 2023, a compound annual growth rate (CAGR) of 25%.Like incandescent lamps and unlike most fluorescent lamps (e.g. tubes and compact fluorescent lamps or CFLs), LEDs come to full brightness without need for a warm-up time; the life of fluorescent lighting is also reduced by frequent switching on and off. Initial cost of LED is usually higher. Degradation of LED dye and packaging materials reduces light output to some extent over time.Some LED lamps are made to be a directly compatible drop-in replacement for incandescent or fluorescent lamps. An LED lamp packaging may show the lumen output, power consumption in watts, color temperature in kelvins or description (e.g. ""warm white""), operating temperature range, and sometimes the equivalent wattage of an incandescent lamp of similar luminous output.Most LEDs do not emit light in all directions, and their directional characteristics affect the design of lamps, although omnidirectional lamps which radiate light over a 360° angle are becoming more common. The light output of single LEDs is less than that of incandescent and compact fluorescent lamps; in most applications multiple LEDs are used to form a lamp, although high-power versions (see below) are becoming available.LED chips need controlled direct current (DC) electrical power; an appropriate circuit is required to convert alternating current from the supply to the regulated low voltage direct current used by the LEDs. LEDs are adversely affected by high temperature, so LED lamps typically include heat dissipation elements such as heat sinks and cooling fins.