2012年5月31日星期四

Way to Use an LED Grow Light Panel

United LED grow lights are used in greenhouses and small indoor gardens. You can change the light wavelengths to produce the spectrum of light that a particular plant needs. LEDs are more energy efficient than traditional grow lights; they use less energy, last longer and produce little heat. They are so efficient that NASA uses them as grow lights in space.
Instructions

1 Research your plant to determine its light needs, and most efficient day and night cycles.
2 Measure one foot above the maximum growing height of your plant, and mark the height on the wall with a pencil. Mount the LED Globe Bulb manufacturer according to manufacturer's instructions at this mark.
3 Set the electrical light timer to the correct time. Program the on and off intervals of the timer to control the day and night cycle. Plug the LED grow light into the timer.
4 Monitor the carbon dioxide levels of the air. Some Haining LED Panel Lights may emit a large amount of absorbed light that may change the carbon dioxide levels in the air. Use a carbon dioxide generator to add carbon dioxide as needed, up to 1500-parts per million.

Different Kinds of LED Strip Lights


Accent an area with a strip comprised of various LED colors. Find light emitting diodes, or LEDs, in a variety of devices such as digital clocks, backlighting of computer and television screens, sensors and calculators. Strip lighting with Yihao LED strip lights provides an energy-efficient way to create a mood or accent in any area. Choose from a variety of several types of LED strip lights to match your decor.
Flexible and Rigid Strips
Find LEDs embedded in flexible strips, such as ribbons or rope, which is cut to specified lengths and used for decorative or frame lighting. Buy LEDs affixed to rigid strips or tubes for decorative or under-the-counter lighting.
Waterproof Strips
Purchase waterproof, weatherproof and submersible LED strips. Similar to regular China LED Bulb Light, except for the addition of a waterproofing agent such as a silicon rubber sheath, install them along wet locations such as pool decks, fountains and ship railings as both accent and primary lighting.
Color Changing
For specialty accents, install color-changing LED strips. Choose between red, green or blue in many different combinations of color and brightness. Color controllers provide customers with a number of creative options. Create different flickering speeds and color pattern combinations for retail window displays.
Dimmable LED Strips
Many types of LED strip lights are adjustable with the use of a dimmer switch. Since not all ECO Halogen Bulb manufacturers are adjustable, be sure to purchase a strip that is, if you wish to have this option.

Information About LED Lighting Transformer


Information About LED Lighting Transformer
LED Lighting Transformer Information A Light Emitting Diode (LED) is a lighting system that has been around since the 1960s. China LED Downlights are small in size, but can be grouped together to create large amounts of light. All LEDs require a transformer, which regulates the flow of electricity into the lighting system from the power source.

What is a Transformer?
A transformer is made from two coils of wound wire that are connected so that one of the coils will send electricity to the other. One of these coils, the primary coil, is connected to the electrical power source, and it sends electricity to the other, called the primary voltage. The way in which the two coils are connected decides the level of voltage in the second coil. The transformer can either increase or decrease the level of voltage running into it. The turns ratio is the measure of this change.
There are several different types of transformers. However, almost all PD LED Spotlights work with magnetic transformers, due to their reliability. It is not recommended to use any other type.
LEDs
LED lights are made out of small, 1/4 inch-wide diodes. For larger lights, many small ones are grouped together. Conventional light works by heating up a metal filament inside the light until it glows with heat. LEDs do not heat up a filament, and therefore light up without giving off very much heat, making them an excellent option for lighting systems in which heat is a concern. They are also much more energy-efficient that standard lighting systems.
LED lighting comes in two different types: mains voltage LED and low voltage LED. Mains voltage LED Tube Lights are quite simple and can be connected to conventional lights. However, low voltage LEDS require a transformer. Basic Low Voltage LED Transformers
LED transformers are usually built into the LED fixture or they come inserted into the plugs for portable LED devices. Low wattage LED transformers usually take in about 120 volts of alternating current (AC) from the outlet at a time and convert it to 12 or 24 volts of direct current (DC). The transformer will usually have a total amount of wattage that it can handle, and the number of lights it can be used for must have a lower total wattage than this level.
Other Types of Transformers
Larger LED transformers for products such as garden lights come in two forms. They are either box-shaped or toroidal (donut-shaped). They can be placed anywhere that is convenient. They come in black weather-proof boxes and can be placed on buildings, fences, or walls and under decks or even manholes.
If you cannot find a place to hide your transformer above ground, you can buy a Ground Burial Transformer, especially designed to be buried but still protected. It are specially built so that no moisture can get into the transformer. This process is called resin sealing, and it protects the transformer from dangers such as seepage or condensation.
Uses of LEDs
Once you have the proper transformer for your Gemanled LED Ceiling Lamp, you can use it for a wide variety of both indoor and outdoor lighting tasks.
Indoors, LEDs can be used anywhere in any way you might desire, including staircases, hallways, living rooms, kitchens, nurseries and bathrooms.
Outdoors, LED lights are widely used for gardens, decks, patios and driveways.

2012年5月23日星期三

DIY an Ultraviolet LED Flashlight


LED bulbs are the next big thing when it comes to flashlights. LED flashlights can cost hundreds of dollars, depending on the kind of LED bulb used. However, you can make your own ultraviolet LED flashlight for far less. Be aware, however, that once your friends see it, they may want you to make them one also.
Instructions
Preparation
1 Find an ultraviolet LED (Light Emitting Diode) from your local electronics store or online.
2 Purchase a 1/4 watt 100 ohm resistor. This also should be available at your local electronics store or online.
3 Buy a flashlight that requires up to 4 1.5 volt batteries to run when making your own ultraviolet LED flashlight.
4 Remove the bulb from the flashlight you purchased. You may have to use a scissors clamp to remove the bulb from the flashlight without breaking it. Be sure to grasp the bulb by its metal collar, and gently pull the bulb up out of its setting.

5 Hold the bulb by its collar with the scissors clamp, and heat up the base of the bulb with a soldering iron. Make sure you use eye protection as you do so.
6 Wait for the solder to cool, and then tap the scissors clamp, as it's still holding the bulb, against your work bench. You may have to do this rather sharply. By tapping the scissors clamp in this manner, you dislodge any melted solder from the bulb. You can choose to use a solder wick instead of tapping the scissors clamp against the workbench and achieve the same result. Basically, you want to get rid of any excess.
Creation
7 Check the bottom of the bulb to see if you made a small hole in the bulb's base when making an ultraviolet LED flashlight.
8 Solder the 100 ohm resistor to the positive lead on the flashlight you are using to make your own ultraviolet LED flashlight.
9 Bend the shorter negative lead on the LED about 90 degrees. It should extend away from the LED base.
10 Shorten the lead that's the longest by clamping a pair of scissor clamps. The clamps should rest against the LED. Clip off any excess of the lead, leaving only a little protruding beyond the scissors clamp. Shorten the leads on the 100 ohm resistor so they're up to ½ inch long.
11 Attach the 100 ohm resistor to the positive lead by soldering it. You can use the scissors clamp as a heat sink as you do this. Do not allow the solder to flow for more than two seconds.
12 Insert the longer lead through the base of the LED light bulb and through the hole you created.
Assembly
13 Make sure you put the LED bulb in a position that's as close to the original flashlight bulb when you create your own ultraviolet LED flashlight.
14 Let the resistor's free lead keep its 90-degree bend, and allow it to drop into a slot on the base's side and into the solder.
15 Keep the LED bulb centered, then bend the resistor's lead down so it's now pointing toward the base's bottom. Bend the other lead so it's now sticking out of the base at a 90-degree angle.
16 Utilize rosin flux to solder the negative lead to the solder on the side of the base when you're making your own ultraviolet LED flashlight. Remove any excess of the lead that remains. Solder the bulb's base to the lead that's extending to the base, and remove any excess.
17 Check to make sure no portion of the lead extends beyond the outer walls of the bulb's base. You may have to bend the leads to ensure this. You can make the leads flat against the bottom of the base. This will also serve as your bottom contact when you are making your own ultraviolet LED flashlight.
18 Put in the new LED bulb into the flashlight. You can make sure there's enough room for the batteries by wrapping cloth around a dowel that's the right size and making sure it fits inside. Insert the batteries and enjoy. You have just created an ultraviolet LED flashlight.

How To Compare LED Flashlights?


LED light is far brighter than standard light bulbs, last longer and have a larger light range. There are many different makes and models of LED flashlights, so if you're on the market for purchasing a new flashlight you should compare the different features of the device to make sure you purchase and obtain the best LED flashlight for your money.
Instructions
1 Check for the battery life of the LED flashlight. The longer the battery life, the better: you'll spend less money on new batteries over the lifespan of your flashlight.
2 Look for the light distances the LED flashlight is able to create. The longer the distance, the more you are able to illuminate in front of you (which is especially helpful when you are outdoors).
3 Check out the purchase price. LED flashlights are often more expensive than standard flashlights, and you probably don't want to break the bank on a new flashlight.
4 Look at the material around the LED bulb. This is usually either metal or plastic. You want a metal case as it is sturdier and less likely to become damaged.