LED hookup to 9V
... LED. Typical values are 1.8V for red LEDs, 2.1V for green LEDs, 3V for blue LEDs, etc. The LED packaging (particularly if you get them at Radio Shack) should list this value as “Vf”. Hooking up 2 LEDs to a battery: There are 2 ways to do this. The first is “series”, where 2 LEDs are wired inline wit ...
... LED. Typical values are 1.8V for red LEDs, 2.1V for green LEDs, 3V for blue LEDs, etc. The LED packaging (particularly if you get them at Radio Shack) should list this value as “Vf”. Hooking up 2 LEDs to a battery: There are 2 ways to do this. The first is “series”, where 2 LEDs are wired inline wit ...
Ballast Basics I - Universal Lighting Technologies
... Fluorescent Ballast Basics Which lamps need ballasts? All arc discharge lamps such as fluorescent and high intensity discharge (HID) require ballasts for proper operation. Without a ballast, these lamps will not work. ...
... Fluorescent Ballast Basics Which lamps need ballasts? All arc discharge lamps such as fluorescent and high intensity discharge (HID) require ballasts for proper operation. Without a ballast, these lamps will not work. ...
1 Light Emitting Diodes and Solid-State Lighting Solid-state
... Telephone company (AT&T) decided that green is better color than red ...
... Telephone company (AT&T) decided that green is better color than red ...
Energy efficient and intelligent lighting systems
... semiconductor industry players, prominent knowledge institutions, a utility company and innovative medium-sized and small enterprises. Partners represent the entire lighting value chain ...
... semiconductor industry players, prominent knowledge institutions, a utility company and innovative medium-sized and small enterprises. Partners represent the entire lighting value chain ...
IOM MICRONEX (V2.2)
... The unit is mostly made from incombustible materials. The capacitor is of the dry film type and does not contain PCB's. The control gear contains plastic parts and polyester resin. The ignitor contains electronic components and synthetic resins. All electrical components and the body parts may give ...
... The unit is mostly made from incombustible materials. The capacitor is of the dry film type and does not contain PCB's. The control gear contains plastic parts and polyester resin. The ignitor contains electronic components and synthetic resins. All electrical components and the body parts may give ...
Dim light-sources of the future
... • Used for low voltage halogenlamps up to 100W over electronic transformers for trailing-edge control • Used for incandescent lamps up to 100W • Has adjustable minimum dimming level, which is handy when different loads of low-power lamps are connected. • Has memory function and retains the last-set ...
... • Used for low voltage halogenlamps up to 100W over electronic transformers for trailing-edge control • Used for incandescent lamps up to 100W • Has adjustable minimum dimming level, which is handy when different loads of low-power lamps are connected. • Has memory function and retains the last-set ...
Color Stabilization of RGB LEDs in an LED Backlighting Example
... new semiconductor materials in the manufacturing of LEDs have permitted a diversity of color and increased levels of brightness to be achieved. LEDs and LED modules have recently been produced which can be used as a replacement for conventional light devices such as light bulbs and fluorescent light ...
... new semiconductor materials in the manufacturing of LEDs have permitted a diversity of color and increased levels of brightness to be achieved. LEDs and LED modules have recently been produced which can be used as a replacement for conventional light devices such as light bulbs and fluorescent light ...
18W Tri-Colour - NET LED Lighting
... distribute a wide range of commercial LED products on their behalf. We distribute through national electrical wholesalers, being a preferred supplier in many cases, and through hundreds of independent electrical wholesalers. ...
... distribute a wide range of commercial LED products on their behalf. We distribute through national electrical wholesalers, being a preferred supplier in many cases, and through hundreds of independent electrical wholesalers. ...
Application Note
... current flows to operate fluorescent lamps. Three major types of fluorescent lighting circuits are in use today, preheat, instant start (slimline) and rapid start. Instant start (slimline). A class of fluorescent. Ballast provides a high starting voltage surge to quickly light the lamp. All instant ...
... current flows to operate fluorescent lamps. Three major types of fluorescent lighting circuits are in use today, preheat, instant start (slimline) and rapid start. Instant start (slimline). A class of fluorescent. Ballast provides a high starting voltage surge to quickly light the lamp. All instant ...
Fluorescent Lights - Schuylkill Technology Center
... Installation of the lighting fixtures in a house will be one of the last things an electrician does to complete the residential electrical system. The ceilings and walls will have their final coat of paint or other finish already applied. Choosing the lighting fixture types to be used throughout a h ...
... Installation of the lighting fixtures in a house will be one of the last things an electrician does to complete the residential electrical system. The ceilings and walls will have their final coat of paint or other finish already applied. Choosing the lighting fixture types to be used throughout a h ...
... A (and at 25°C), it will emit 976 lumens. The power required to do so is 3 A * 3.34 V, or 10.02 W, resulting in an efficiency of 97.4 lm/W. However, when the LED is driven at 1.5 A, it will emit 590 lumens. The power required to do so is 1.5 A * 3.14 V, or 4.71 W, resulting in an efficiency of 125.3 ...
Dimming LEDs - IET Electrical
... materials in ways that are impossible with conventional lighting and can therefore provide more freedom in the design of luminaires, which can be made to look sleek, modern and unobtrusive. Another advantage is that, because individual LEDs are almost a point-light source, light control is simple, a ...
... materials in ways that are impossible with conventional lighting and can therefore provide more freedom in the design of luminaires, which can be made to look sleek, modern and unobtrusive. Another advantage is that, because individual LEDs are almost a point-light source, light control is simple, a ...
Efficient of the Bulbs Marcelino Pumar Pérez May 2010
... Very small lamps may have the filament support wires extended through the base of the lamp, and can be directly soldered to a printed circuit board for connections. Some reflector-type lamps include screw terminals for connection of wires. Most lamps have metal bases that fit in a socket to support ...
... Very small lamps may have the filament support wires extended through the base of the lamp, and can be directly soldered to a printed circuit board for connections. Some reflector-type lamps include screw terminals for connection of wires. Most lamps have metal bases that fit in a socket to support ...
New UV Technology for Point-of-Use Water Disinfection
... attractive alternative to traditional chemical processes, which require temperature and pH control and often create substantial amounts of disinfection by-products. Currently, low- and medium-pressure mercury vapor lamps are the only UV light sources used for water disinfection in municipal faciliti ...
... attractive alternative to traditional chemical processes, which require temperature and pH control and often create substantial amounts of disinfection by-products. Currently, low- and medium-pressure mercury vapor lamps are the only UV light sources used for water disinfection in municipal faciliti ...
Lunera CFL LED GX23 2-Pin
... Only those open holes indicated in the photographs and/or drawings may be made or altered as a result of kit installation. Do not leave any other open holes in an enclosure of wiring or electrical components. Do not make or alter any open holes in an enclosure of wiring or electrical components duri ...
... Only those open holes indicated in the photographs and/or drawings may be made or altered as a result of kit installation. Do not leave any other open holes in an enclosure of wiring or electrical components. Do not make or alter any open holes in an enclosure of wiring or electrical components duri ...
I. Introduction
... importance of environment preservation. In this direction, important efforts have been made in the diverse areas of knowledge. In electrical engineering field, this phenomenon has reflected in searching for alternatives energy systems, higher efficiency on available resources utilization, losses red ...
... importance of environment preservation. In this direction, important efforts have been made in the diverse areas of knowledge. In electrical engineering field, this phenomenon has reflected in searching for alternatives energy systems, higher efficiency on available resources utilization, losses red ...
3M™ Overhead Projectors
... higher or lower than the standards of 120v, 220v, 230v or 240v, there will be an effect on lamp life. Line voltage at 4 or 5 percent higher than the standard can cause a lamp to give 16% more light but last only 60% of the rated life. A lamp used where the line voltage is only 95 or 96 percent of th ...
... higher or lower than the standards of 120v, 220v, 230v or 240v, there will be an effect on lamp life. Line voltage at 4 or 5 percent higher than the standard can cause a lamp to give 16% more light but last only 60% of the rated life. A lamp used where the line voltage is only 95 or 96 percent of th ...
DIMLight M-LCR instructions manual New LCR universal dimmers
... Adjusting the minimum: Particularly in use with LED light sources and ESL lamps, it may be useful to be able to adjust the minimum level of dimmer, so the light is not flashing because of the low set light level. Do the following: 1. First Turn the potentiometer fully counterclockwise. 2. Second Adj ...
... Adjusting the minimum: Particularly in use with LED light sources and ESL lamps, it may be useful to be able to adjust the minimum level of dimmer, so the light is not flashing because of the low set light level. Do the following: 1. First Turn the potentiometer fully counterclockwise. 2. Second Adj ...
electric light sources
... electromagnetic radiation with different wavelengths. Energy conversion is performed by incandescence and luminescence phenomena. The incandescence consists of visible radiations emission as a result of temperature increase of a body called radiator. The luminescence is the property of matter to emi ...
... electromagnetic radiation with different wavelengths. Energy conversion is performed by incandescence and luminescence phenomena. The incandescence consists of visible radiations emission as a result of temperature increase of a body called radiator. The luminescence is the property of matter to emi ...
NET-11-11-11 PRIME LED NCF Luminaire 80W
... We appreciate that purchasing quality LED lighting products from suppliers that consistently deliver excellent results and value for money is tough in any market, especially with the number of manufacturers growing monthly. Our aim is to be a supplier that you can trust, with credibility and a track ...
... We appreciate that purchasing quality LED lighting products from suppliers that consistently deliver excellent results and value for money is tough in any market, especially with the number of manufacturers growing monthly. Our aim is to be a supplier that you can trust, with credibility and a track ...
Behaviour of InGaN LEDs in Parallel Circuits Application Note
... The Information shown in this document was produced with due care, but is provided by OSRAM Opto Semiconductors GmbH “as is” and without OSRAM Opto Semiconductors GmbH assuming, express or implied, any warranty or liability whatsoever, including, but not limited to the warranties of correctness, com ...
... The Information shown in this document was produced with due care, but is provided by OSRAM Opto Semiconductors GmbH “as is” and without OSRAM Opto Semiconductors GmbH assuming, express or implied, any warranty or liability whatsoever, including, but not limited to the warranties of correctness, com ...
LuxSense
... • LuxSense is a DayLight Regulation option (DLR) for luminaires equipped with a Philips HFR ballast.The sensor measures the reflected light coming from the surface below. It dims down the lamp output when the light level exceeds the required light level defined by the light sensor setpoint. • LuxSen ...
... • LuxSense is a DayLight Regulation option (DLR) for luminaires equipped with a Philips HFR ballast.The sensor measures the reflected light coming from the surface below. It dims down the lamp output when the light level exceeds the required light level defined by the light sensor setpoint. • LuxSen ...
C4L-PM240RBD - Chips4Light
... Chips 4 Light GmbH does not warrant the accuracy, completeness or timeliness of the specification on this site and does not assume liability for any errors or omissions in the materials. The data specified is intended solely for the purpose of product description. No representations or warranties, e ...
... Chips 4 Light GmbH does not warrant the accuracy, completeness or timeliness of the specification on this site and does not assume liability for any errors or omissions in the materials. The data specified is intended solely for the purpose of product description. No representations or warranties, e ...
Basic Structure of LEDs - Stanley Electronic Components
... InGaN. The energy states of the electrons within the solid materials in compound semiconductors vary depending on the component materials in those semiconductors. When the electron energy in the materials is converted to light energy, the wavelength of the light is inversely proportional to the elec ...
... InGaN. The energy states of the electrons within the solid materials in compound semiconductors vary depending on the component materials in those semiconductors. When the electron energy in the materials is converted to light energy, the wavelength of the light is inversely proportional to the elec ...
Lighting: In practice
... light production. LED light output decreases with operating temperature. Manufacturers typically quote efficiencies at 25°C, but the actual semiconductor temperature can warm to between 60°C and 80°C. These higher temperatures can give losses of >10%. Large-scale LED arrays, as used for horticultura ...
... light production. LED light output decreases with operating temperature. Manufacturers typically quote efficiencies at 25°C, but the actual semiconductor temperature can warm to between 60°C and 80°C. These higher temperatures can give losses of >10%. Large-scale LED arrays, as used for horticultura ...
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.