LED Lighting Potentiality

How much thought do you actually give your lighting system? Well, just a little could dramatically affect your energy saving and your bottom line. LED lighting is now accepted widely by people or even governments who lead the direction to energy saving.

• Various countries government all over the world have enlarged the support to LED industry in policy to promote energy saving and environmental protection lighting.
• Starting from September, 2009, the power more than 100W incandescent lamp were disabled in Europe, and before 2016, all incandescent lamps will be forbid.
• The American energy information and the act of Security starts from 2007 to limit the low efficiency lamps and lanterns‘ sale. In 2012 the low efficiency incandescent lamp will be unable to sell.
• Various countries government has enlarged to the LED industrial policy support, country’s and so on Europe and America energy conservation motions and the environmental protection illumination promotion brings the market space for the LED lamp.

It is said that LED Light – The most promising green illumination source in 21 century. It seems there is good conditions to push the lighting technology mature.

Outdoor White LED Square Flood

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Images not displaying properly? Add daisy@flood-light-led.com to your address book now or view the online version here. HIACHIEVE LIMITED We are expert at LED floodlights. Subscribe Unsubscribe Forward to a friend August 29th, 2011 　 Item No: HAYW2001-10W Power: 10W Beam: 120° Delivery Time: 7-15 days MOQ: 1 pc contact us for trade prices How to choose the suitable LED floodlights When you choose a flood light for your home, there are several things to consider. The amount of light you need, the location of the lights and the location of the neighbors are all things to think about before choosing a flood light. Flood lights can be used for security reasons or to help illuminate your path. A. If you are using flood lights for security reasons, you may prefer a dusk to dawn light or a motion sensitive light. Dusk to dawn lights automatically turn on when the daylight wanes. In the morning, the lights kick off automatically. This type of light is especially beneficial for people who leave for work early in the morning or return later in the evening. This way, you don’t have to arrive or depart in darkness, but you don’t have to leave the lights on all day. B. Motion sensitive lights are very convenient. They provide a hands-free way to turn lights on and off as you enter and exit the home. They also provide an added security feature, because they will kick on automatically if someone shows up at your door. If you live on a busy street and your porch is close to the sidewalk, you may find the constant on and off of a motion sensitive light annoying. C. If you are looking for a flood light that illuminates an area outside your home such as where you set out the garbage or walk up a set of stairs, the amount of light cast by your light is important. Some flood lights, such as solar powered lights, are dim. While they may work well to add some light to a dark sidewalk, they may cast dark shadows or be too dim to provide enough lighting for the intended purpose. If you require bright light from your flood light, choose a style that allows you to use at least one 75 watt bulb. Based on your different use reasons on LED floodlight, you can decide what type to choose to realize the ideal function. Hiachieve Limited 123 Your Address, Your City, State, Zip info@flood-light-led.com www.flood-light-led.com To ensure our newsletter always reaches your inbox, please add daisy@flood-light-led.com to your address book. If you prefer not to receive news from Hiachieve Limited in the future, you can unsubscribe here.

Energy Saving Tips

• Use Dimmers, Motion Sensors, or occupancy sensors to automatically turn on or off lighting as needed and prevent energy waste.
• If you are using bulbs to light up your place, switch to LED bulbs right now.
• Use Natural light whenever available. No point keeping your curtains/ blinds shut and then using lights indoors in the day time.
• Use Task lighting; instead of brightly lighting an entire room, focus the light where you need it.
• where has an abundance of sunlight you can consider to use Solar heaters.
• Do you keep the microwave, the blender/mixer, the laptop on standby mode? What is the cooling level in your refrigerator? Keeping appliances on standby does consume a lot of electricity over time. If you are in the kitchen, don’t let fans, lights and TV be running in other rooms.
• Take advantage of daylight by using light-coloured, loose-weave curtains on your windows to allow daylight to penetrate the room while preserving privacy. Also, decorate with lighter colors that reflect daylight.

How to choose suitable LED color temperature

When LED lights improve our daily life, it seems we need more consideration to choose the right one to meet our needs, like the color temperature to suit the atmosphere as we wished.

For the LED light, there are mainly 3 kinds of white colors – warm white, natural white and cool white. It states the difference between a softer, warmer form of illumination and a sharper, colder effect.

Kelvin scale measures the “color” range of LEDs. You can see the color below 2000K is yellow / orange tinge, while 4000K is roughly neutral. The colors associated with any particular LED products are described as “warm white”, “natural white”, or “cool white”. When the temperature of K no. goes down the light appears warmer and as it goes up it is cooler.

Those different colors perfectly match different atmospheres and our needs. Usually, warm white is good for indoors, as it keeps the room sweet and warm and make people relax. Cool white is a good choice for outdoor lighting or anywhere where you might want sharper definition and illumination like the reading room that more approximates daylight.

But how are the lighting effects under different colors? Yes, we need to familiar with them.

From the above examples you can understand the difference between ‘warm white’ and ‘cool white’. We can see that both very cool and very warm color temperatures can adversely affect vision and generally make a space feel uncomfortable, so it is worth considering this issue quite carelly and getting a color that suits our own personal needs and tastes.

One things here needs to explain about this field:

The name used to describe the color temperature is not same from here to there. Some people call cool white as daylight, natural white as cool white. For example, inHiachieve Limited company, the warm white is 2700K-3300K, Natural white 4000-5000K; and 55000K-7000K is cool white. I have to admit that different companies have a different range to part the warm, natural or cool, but the figure is not at too much difference. Another thing is the called name, some people like to say day light while he means natural light; or call natural light means cool white… So it is betty to confirm the light color with Kelvin scale to limit it.

Maintenance on LED street light

 

Maintenance on LED street light

For LED integrated street light & multi-modules LED street light:

1. All the led light sources fail to work

Possibility:

1 The AC input line hasn’t been connected correctly;

2 The fuse has been damaged;

3 The DC input line hasn’t been connected correctly.

Solution:

1 Connect correctly the AC output of light fixture and AC input of power supply with waterproof connector;

2 Use the fuse of 5A/250V (glass tube). If the LED street light still doesn’t work, change the power supply;

3 Connect correctly the DC output of power supply and DC input of light fixture with waterproof connector.

2. LED lights flashing

Possibility: there is some problem with power supply

Solution: change the power supply

3. One group of LED light source is getting darker

Possibility: there is some problem with power supply

Solution: change the power supply

4. Some LED doesn’t work or is very dark

Possibility: LED light source is damaged

Solution: change the LED light source of same type

Issues Need Attention in LED Outdoor Lighting

Since the results of outdoor complex environment, the outdoor lighting design should consider more issues like hot or cold temperature, UV, humidity, rain, dust, chemicals, gas and other natural conditions. So when design LED outdoor lighting, you should make sure the light can bear the terrible factors. For example, to make sure the light can work under 50 degree in summer hot days. The LED chip might be ok, but how about the LED driver? Two weeks might be ok, how about 2 years, 5 years?

 

1. To make sure the excellent heat radiation, the LED outdoor lighting should be good in materials and design of light shell and heat sink. In these days, some lights’ shell and heat sink are designed into one to solve the LED heat problem. The materials are generally used aluminum or aluminum alloy, copper or copper alloys, and other good conductivity thermal connections. If the heat radiation problem can not be done well, the LED light might be on strike in few days.

 

2. To keep the transparency light shade with good light output even through many years outdoor usage, the lampshade selection is important. As outdoor sunlight, ultraviolet radiation, dust, chemical gases, day and night temperature changes and other factors that would shorten lampshade life, followed by the liquidation of pollution, the lampshade can not easily clean or might become yellow stain and cracking. It would affect the light output. Currently for the lampshade, transparent plastic, PC materials, plexiglass are usually used. The materials are good, but to make a high quality lampshade becomes the importance.

 

3. To pay attention to the outdoor LEDs packaging technology. Currently the domestic productions of LED lamps (mainly roads) are mainly used in numerous 1W LED series and parallel assembly. This method is the most advanced thermal packaging of high-tech products. But it is limited to 30W, 50W. If higher power the multi-chip package and heat sink is the best package overall.

 

4. To have good quality LED chip and LED driver, this would make the lights long life time. Brand LED chip is better than normal while so is the LED driver. The LED driver is fragile than other parts and easily get broken, even have about 10000 hours life time, which would be a limit to 50000 hours long life time LEDs. So pay attention to the LED driver, it would save energy in future maintenance and cost.

 

Above all, these are the mainly factors we should take attention during making LED outdoor lights.

 

From: www.flood-light-led.com

LED Floodlight Applications

Today, LED floodlights are widely used for outdoor and indoor. Here we’d like to state its outdoor usages. The purpose of floodlighting is varied, one is for safety or to keep working at night, Such as car parking, yard, etc; the second is to highlight the statues, signs, or make the building more features in the night.

For the billboard lights, they are nice with no maintenance, long life, energy saving and soft light.

For landscaping and decoration, they are the best.

Eight Factors That Affect LED Light Price

When we choose LED lights, we often encounter the fact that even the light with the same look, their price are different. Here are some factors that affect price we should take into consideration.

1. LED efficiency and LED brand

With different LED efficiency, the prices are surely different. In the markets, there are various LED efficiency for the LEDs like 60-79lm/w, 70-80lm/w… and some brand single LED of white color like Cree can reach more than 200lm/w, and their price are quite different.

2. The Antistatic level

The LED with high level of antistatic has a long life time, leading to high price. Generally, the LEDs’ ESD is more than 700v can be used in LED lighting.

3. LED light wave length

With the same light wave length, the LED color would be pure and price would be high. The LED factory with no Automatic Sorting Machine of LED would have difficulty to produce good LEDs in purity and uniformity.

4. Lights’ View beam and luminance

Different application might need different beam angle for the LED light. Special beam angle would affect the price. E.g., the complete diffusion beam is high in price. The view beam angle would also affect the luminance.

5. LED Light lifetime

The important factor is LED light lifespan, which is determined by light degradation. The longer of LED life time, the higher in price.

6. LED chips’ size

The size of LED chip affects the quality of LED light, which will affect the price. 45mil LED chip would be better than 38mil.

7. LED driver

High quality driver would support the LED light work well and long life. Otherwise, the LED light might be on strike after several weeks lighting.

8. Other accessories material and manufacturing ways.

Like the heat sink, the crust, the electrical wire… they also affect the whole light price. Compared with the LED chip and LED driver, this factor is small.

There might be other detailed factors that would affect the LED light price. For different light, it depends on the factors of its different parts. Take LED floodlight for a example, we should consider the different factors on its led chip, led driver, heat sink, crust, reflector, lens, wires and the like.

From: http://www.flood-light-led.com

How Many Types of LED Floodlights

A flood light is a light bulb with wide beam that is designed to cast light over a wide area. This type of light can work both indoors and outdoors for a variety of purposes, ranging from sporting events to interior accent lighting. Like other bulbs, flood lights come in different types, about 4 kinds from the method of producing light.
Incandescent

The incandescent light bulb is common in people’s life. These lights bulbs have a filament inside of them that heats up when electronic current is passed through it, causing it to heat up and produce light. They make up about 85 percent of the light bulbs used in households, according to the Department of Energy.This kind of light is low in price but short time in lifespan. Like other bulb types, incandescent floodlights come in a wide variety of sizes and wattage ranges, and can be found in indoor and outdoor settings. Some incandescent flood lights serve outdoor applications well, where tolerance for direct exposure to the elements is needed. Outdoor incandescent floods can be dimmed when desired.

Halogen

Like incandescent, halogen lights also emit light by passing an electric current through a filament, though somewhat differently than an incandescent bulb. Halogen bulbs utilize a filament that is encased in quartz and surrounded by a halogen gas that protects the filament longer and allows the light a longer useful lifetime, as well as producing more light. Halogen floodlights can be used both indoors and outdoors, and can also be dimmed. These lights produce much more heat than incandescent bulbs, so you must take measures to ensure they do not pose a fire danger. They are surely penetrating that can be used widely in airport, station and the like, but they have neither a very long life nor friendly to the environment.

Fluorescent

Fluorescent bulbs operate differently than incandescent and halogen bulbs. Instead of heating a filament, a fluorescent light uses electric current to excite gasses within the bulbs that then fluoresce, or produce light. These lights are more efficient than incandescent and halogen lights, with compact fluorescent bulbs widely available in flood lights. Unlike incandescent and halogens, fluorescent lights cannot be dimmed, though they are much cooler. Compact fluorescent floods use about 75 percent less energy than their filament-based counterparts. Fluorescent bulb is not environmental friendly.

LED

A LED flood light uses light emitting diodes (LEDs) instead of excited filaments or gasses to produce light. These lights pass electric current through a semiconductor material to produce light. LED lights can be dimmed in some degree, and they are very efficient and energy saving. LED floods lower electricity costs compared to other flood lights. They are good to environment but generally more expensive than any other type, though the cost of LED bulbs has decreased as they have become more widespread.

In the future, more LED are widely used, while incandescent and fluorescent light would be back out of the marketing bit by bit with the LED lighting technology development.

The difference between LED floodlight and LED spot light

What is the difference between a floodlight and a spotlight?

 LED spotlights mainly stress on the ‘spot’  whose function is focusing light. That is to say they output a narrower beam of light, typically less than 45 degrees wide. Most of the light from a spotlight is concentrated onto a relatively small area producing a bright spot.
LED floodlights while has a stress on ‘flood’ whose word meaning is diffusing the light. So the floodlight output a wider beamof light, up to 120 degrees, so the light from a floodlight is spread out over a much larger area.

As the spot light light is more concentrated, so it appears brighter than a floodlight but only within its narrower beam. But it depends on your different applications to choose it. A spotlight is more suited to illuminating objects, like to illuminate a tree, a fountain , and a floodlight is more suited to illuminating areas, like to light a store, show room, or a wall.