Archive for November, 2014

DIY LED Ring Light

DIY LED Ring Light

Proper lighting of your subject is perhaps one of the most fundamental yet difficult tasks to achieve in photography. Oftentimes, using the flash function on your camera will leave harsh shadows in the photograph and may not be ideal, as the lighting condition on a camera flash is inconsistent and somewhat unpredictable. LED ring lights can provide a way for photographers emit a consistent and even light on their subject, directed by the camera’s field of view.

Instructions
1
Place your camera filter on a clear plastic disc from the CD-R cake box packaging. Mark the circumference of the camera filter on the plastic disc.

2
Cut the plastic disc along the marked perimeter of the camera filter. Fit the camera filter into the hole cut out from the disc, and glue them together using super glue.
3.Cut the side portion off the cake box casing’s top cover, leaving approximately 2 cm of a lip from the top of the casing. Mark out a center hole on the casing at approximately the size of the camera filter. Cut open a central hole from the casing cover along the marks.

4
Sand both sides of the top cover of the casing to achieve an evenly sanded surface. This will help diffuse the LED lighting evenly from the ring light rig.

5
Solder the wirings of the two LED rings together. Solder the 90mm ring light’s wiring into the 120mm ring light’s wires to combine the circuitry of the rig.

6
Apply super glue to the backs of the LED ring lights and attach them to the plastic disc, fitting it snugly around the camera filter rim.

7
Attach the camera filter onto your camera lens, and hook up the LED wiring into a 12-volt battery to turn on the ring light.

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How Much Electricity Does a Neon Light Use?

How Much Electricity Does a Neon Light Use?

Besides being one of the most attractive options for colorful signage, neon tubes are a comparatively energy-efficient light source that consumes much less power relative to the brightness of the light it puts out, than incandescent or fluorescent light sources do. Only the newest light-emitting diode technologies challenge neon when it comes to efficient colored light.

Neon Power Consumption
Measure the power consumption of a linear light source like a neon tube by using a ratio of watts used per foot of neon. The power consumption of a given neon tube depends on the type of transformer used and the color of the neon, but consumption of 3 1/2 to 4 watts per foot for red neon is typical. That means that a foot of red neon tube that burns for 12 hours per day will consume from 15.33 to 17.52-kilowatt hours of electricity per year. Measure the efficiency of neon as a proportion of lumens — a unit of light output — per watt.

Compared to LED
Light-emitting diodes are suggested as energy-efficient alternatives to neon tubes, but the comparisons, which often claim a 90 percent energy savings for LED, often fail to take into account the relative inefficiency of LED light sources as compared to neon. While an LED light source of a similar color and size to neon may consume less power, a foot of LED tube lighting left on for 12 hours per day may consume as little as 3.5 kWh per year; the LED typically outputs much less light than the neon tube. Adjusting the brightness of the LED for comparison to neon, the difference in power consumption is less pronounced.

 

Compared to Fluorescent and Incandescent
When compared to a fluorescent bulb, neon is much more efficient, with a fluorescent fixture consuming more than 50 percent more power than a comparable neon light source. High output fluorescent bulbs consume even more power; a foot of HO fluorescent tube consumes 70 kWh per year when burned 12 hours per day. The difference in power consumption between neon and incandescent bulbs is even greater; incandescent bulbs can consume up to four times as much power as similar fluorescent bulbs.

Alternatives
Although the difference in power consumption between neon and LED light sources is not as great as it might first appear to be, LEDs have other advantages that can make them an attractive alternative to neon. New flexible LED tube lights mimic the look of neon but are more durable and long lasting. They are resistant to water and humidity, produce almost no heat and are capable of producing lighting effects that traditional neon cannot achieve.

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How to Change the Battery on a Coast LED Lenser

How to Change the Battery on a Coast LED Lenser

When your Coast LED Lenser flashlight no longer turns on, it’s time to replace the batteries. Depending on the model of Lenser flashlight you own, you will need from one to four AA or AAA batteries. The batteries can power the flashlight for up to 64 hours before needing to be replaced. Unlike traditional flashlights, an LED flashlight features an LED light bulb, which provides a brighter light and is longer lasting.

Instructions
1
Twist the top half of the Coast LED Lenser flashlight until it detaches from the handle.

2
Tilt the handle to remove the battery or batteries from the housing unit.

 

3.Insert the new batteries into the handle with the negative side of the battery facing downward.

4
Reconnect the top half of the flashlight by screwing it back onto the handle

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How to Troubleshoot a Payne Furnace’s Blinking Lights

How to Troubleshoot a Payne Furnace’s Blinking Lights

Like many new, high efficiency furnaces, Payne furnaces come equipped with an internal diagnostic system that lets you know if the system is not running properly. When the diagnostic system encounters a problem, it will alert you by flashing a code through the use of the light emitting diode, or LED, lights located on the furnace. By paying close attention to the LED display on your Payne furnace, you can troubleshoot any potential problems as they evolve. The LED lights are typically located on the front toward the bottom of the furnace where the controls are located.

Instructions
1
Watch the LED display and count the number of times the light blinks. Payne diagnostic codes are two number codes. The first number is indicated by fast blinks and the second number by slower blinks. Write down the code after counting out the blinks for both the first and second number.

2
Refer to your owner’s manual for the corresponding meaning of the codes. Some of the most common codes include a 13 or 33 which indicate a limit switch lockout, 14 or 34 indicate an ignition lockout, 24 indicates an open fuse and 31 indicates that a pressure switch is open. Any other fault code usually indicates the need to contact a service repair person.

 

Check for a dirty air filter, a blocked return air or air-supply grille if you have a code 13 or 33.

4
Check that the manual shut off valve located on the gas supply pipe is in the open position for a code 14 or 34. Turn off the electrical supply and remove the access doors if that is not the problem. Locate the control switch or knob on the gas valve inside the furnace and ensure that it is in the “on” position. If either of these were not on or open, you will need to follow your furnace’s start-up procedures after opening or turning them on.

5
Examine the fuses and the 24-volt wiring for a blown fuse or faulty wiring if your furnace gives you a code 24.

6
Look for cracks or damage to any of the PVC pipes leading to the combustion-air intake and the vent or exhaust if you or given a code 31. Also look for blockages in the combustion-air intake both on the side of the furnace and outside the home. Examine the vent or exhaust on the outside of the home for obstructions.

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How to Install an LED in a C5 Corvette

How to Install an LED in a C5 Corvette

LED lights are appreciated for their brightness, longevity and easy installation. Interior LED lighting allows you to customize the interior of your car by creatively choosing the colors and locations of the LED lights. You can either create special visual effects, or you can add to the convenience of your car by installing LED lights where passengers particularly need bright lighting. While installation in your C5 Corvette is not particularly demanding, it does require wiring your lights to your car battery, and therefore, if you are inexperienced with electrical circuits, consult an experienced mechanic first, for safety reasons.
Instructions
1
Disconnect the positive and negative terminals of your car battery, for safety purposes, before you start working.

2
Mark the spot in your C5 Corvette where you would like to install your LED light. Be sure to install it in a location where it cannot be easily kicked, damaged or displaced.

 

Use a drill bit, of diameter slightly smaller than that of your screws, to make holes in your car. Thread the screws through your LED lights, and use a screwdriver to fasten your LED lights to your car interior surface.

4
Attach your LED lights to 12-gauge AWG cable. Pass the 12-gauge AWG cable through pre-existing holes in the firewall of your car, which separates the engine from the interior of your car. Connect the 12-gauge AWG cable to your car battery. Connect the positive (red) wires to the positive terminal of the battery, the negative (black) wires to the negative battery terminal, and the green wire to the battery housing, where it can serve as a ground.

5
Reconnect your car battery. When you turn on the engine, your LED light will turn on.

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Noma Light Timer Instructions

Noma Light Timer Instructions
The Noma light timer allows you to preset times at which certain lights will automatically turn on or off. It is approved for outdoor installation and is commonly used to control holiday light displays and indoor lamps while residents are on vacation. Setting the timer takes just a few minutes thanks to its streamlined design.
Instructions
1
Plug the pronged cord of the Noma timer into an indoor or outdoor electrical outlet. Use an outdoor-approved extension cord if the timer’s cord does not reach the outdoor outlet.

2
Plug the electrical cord of the light into the opposite end of the Noma timer.
Look at the digital display at the top of the timer and wait until it shows a “C,” which represents the current clock time. Press the top button on the timer until the correct hour is displayed. The small red dot beside the numbers represents p.m. times.

4
Press the bottom button on the timer and wait until the digital display shows a “P,” which represents the time the lights will come on. Press the top button until you reach the hour at which you want the lights to turn on automatically.

5
Press the bottom button and wait until an “E” is displayed in the digital box, which represents the time the lights will turn off. Press the top button until you reach the desired time.

6
Press the bottom button again to start the program.

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How to Use an RGB LED

How to Use an RGB LED

An RGB LED is actually three LEDs in one bulb. The housing contains separate red, blue and green LEDs which share a common cathode, or negative terminal. The brightness of each color is determined by its input voltage. By combining the three colors in different amounts, you can turn the LED any color you want. This circuit demonstrates the use of an RGB LED by using a potentiometer to control the voltage going to each color. A potentiometer is a variable resistor controlled by a knob, like the volume dial on your stereo.
Instructions
1
Connect the battery clip to the power and ground rails of the breadboard. The red wire from the battery clip connects to the power supply rail, and the black wire connects to ground. Do not put the batteries in the clip yet.

2
Place the LED on the breadboard so that the four pins are not connected to each other. Connect the longest pin, the cathode, to ground. Consult your LED’s datasheet to confirm which pin is which, as it may vary with different manufacturers.
Calculate the resistor value you will need for each pin. Different color LEDs have different maximum voltage ratings, so consult your LED’s datasheet, which will list the maximum forward voltage for each color. Calculate resistor values using Ohm’s law, which states that resistance equals voltage divided by current, or R = V/I. For each color, subtract the maximum forward voltage from the supply voltage. The result is the voltage you need to drop across the resistor. Plug in the resistor voltage for V, and divide by .02 for current. The result is the minimum resistor value you should use for that color.

4
Connect the first resistor to the positive power rail, and then to the left terminal of a potentiometer. Connect the center terminal of the potentiometer to the appropriate leg of the LED for this color. Connect the right terminal of the potentiometer to ground. Repeat for the other two colors. The potentiometer will act as a voltage divider, so the actual resistance value of the potentiometer is irrelevant. Turning the knob on the potentiometer will set the voltage to any position between 0 volts and the maximum forward voltage, controlling the brightness of the color.

5
Connect the batteries to the clip, and the LED will light up. Control the color by turning the three potentiometer knobs. Each knob controls the brightness of its own color.

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How to Troubleshoot Icicle Lights

How to Troubleshoot Icicle Lights

Among the most popular Christmas decorations are icicle lights. These consist of long strands of lights dangling down from a main cord; the effect looks like glowing icicles. They are used to decorate rooftops, eaves, porches and even doorways. Most people connect several strings of icicle lights together and power them up using an extension cord plugged into an outside outlet. When your icicle lights aren’t working for some reason, take some time to troubleshoot to restore your house to full holiday glory

Instructions
1
Verify that the outlet you are using is supplying power. You can do this by removing the extension cord and plugging in something else that will verify that it is receiving electricity. If the outlet appears to be working fine, move to the next step in troubleshooting.

2
Locate the icicle light strand that is farthest out from the outlet. Unplug it to see if the rest of the strands then light up. Often, a bad strand will cause the rest in the line to go out. Removing the bad strand should cause the rest of the strands to the outlet to light.

 

3.Check the strand in your hands for bad bulbs if the rest do light up. Gently press each bulb into the socket; even if it looks connected, the filaments from a bulb may not be connecting with the components in the socket. Plug in the strand and see if it, too, lights up. If so, the problem is solved. If not, continue to the next step.

4
Move to the next-closest strand if the whole line remains dark, then disconnect it. See whether the rest of the strands light up back to the outlet. If so, check the bulbs on the second-closest strand. Reconnect and see if the rest of the strands light up. If so, you found the problem. If not, move to the next step.

5
Repeat the process with every strand back to the outlet–disconnecting, testing bulbs and reconnecting. This way, you’ll be able to identify the problem strand and either fix it by adjusting the bulbs or replacing the strand with a working one.

6
Consider whether the problem is the extension cord if you get to the extension cord connection and the line is still dark.

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How to Use LED Grow Lights

How to Use LED Grow Lights

LED grow lights, or Light-Emitting Diode lamps, are an increasingly popular choice for indoor plant growing principally because they can deliver more intense light output with less energy and heat production, and they have a much longer useful life than that of high pressure sodium, fluorescent, high-intensity discharge or incandescent lamps. Most grow lamps are used commercially and industrially, but some residential use occurs. LEDs are made in several colors to mimic the ranges of natural sunlight that drive maximum photosynthesis and plant performance. LED grow lights are also popular because they can be used in standard bulb fittings and do not require special ballasts or non-standard electrical fixtures. LEDs come in 2-watt to 15-watt equivalents and in a range of sizes and colors.
nstructions
1
Determine the optimal lighting requirements for your particular plant or plants to thrive if they were living outdoors. Figure out the intensity of light and for how many hours a day it is needed. Often this information is on the plant tag or little plastic pick stuck in the soil of your plant. Online garden resources can help you make the determination if your plant is unmarked. This is what you need to mimic indoors with LEDs. If your plants grow outdoors in shade they need less light indoors. If they are vegetables and grow in full sun for 14 hours per day outdoors then that is the bar you must meet in order for the plant to thrive indoors.

2
Provide a mix of red spectrum and blue spectrum LEDs. Plant photosynthesis is most responsive to these two spectrums. According to research conducted by NASA, mixing at least 80 percent red LEDs and roughly 20 percent blue LEDs is a successful ratio for growing plants indoors. You can easily switch out a few of the blue LEDs for white without harming the plant growth. This will allow you to see what’s happening with your plants much more readily because white LEDs have a spectrum of green, yellow and orange, which is more easily visible to the human eye.

 

Adjust your LEDs to hang above your plant tops by anywhere from 5 inches to 20 inches, according to the plant’s size and light intensity requirements. Your goal is to have the plant greens showered in light to their edges but not have the light spill or be wasted on surrounding areas where there are no plants. Height adjustment of lighting helps achieve this economy as plants grow, changing in both shape and size.

4
Determine if your plants require light and dark periods. If so, connect your LED lights to a timer to regulate their on and off cycles to save you time, worry and labor. If your plants prefer long daylight periods and short night periods, program the automatic timer for that length of light cycle.

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How Much Energy Do Christmas Lights Use?

How Much Energy Do Christmas Lights Use?

If you plan to use a lot of Christmas lights but do not want an unwanted “gift” when you open your electric bill in the New Year, you might want to buy Christmas lights that do not use too much energy.

Other People Are Reading
LED Lights
Using LED (Light Emitting Diode) lights can save you big bucks. According to the Long Island Power Authority, using a string of 600 LED lights for a month will cost a fraction of what it will cost to run “traditional” Christmas lights. A study by the Neighborhood Network says they use only .04 watts per light.

Mini-Lights
These are the smaller bulbs that are popular. The Neighborhood Network says “traditional” mini-light bulbs use about .34 watts per bulb.

 

C-7
These bulbs are 1 inch long that some say are shaped like a strawberry. According to the Neighborhood Network, each C-7 bulb uses more than 100 times the energy of an LED.

C-9 Bulbs
C-9 bulbs look like the C-7s but are bigger and use twice the energy.

Benefits
LED bulbs save money on your electric bill and also help the environment. The Long Island Power Authority says LED lights do not have a filament, so they do not get hot. LIPA also says LED lights can last 50,000 to 100,000 hours. That compares with the lifespan of a conventional bulb of around 1,500 hours.

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