You talk about tubes specifically so I assume the 60 watt fixture is also designed for tubes. In such a case you should not use a higher wattage tube.
If you were to replace a 60 watt incandescent bulb with a compact florescent of 75 watts you are correct that the heat would be less. If heat were the only de-rating factor you would probably be okay. Not sure how this is handled in the code.
The answer is 0.04 kW. Since it says the bulb is a 40 watt bulb, just divide by 1000 to get the kW of the bulb.To answer this question correctly a time span must be given. How long will the bulb be energized to give the rating of kWhkilowatt hours.
This way to figure out the answer to this question has been given in detail in a related question: "What savings can a compact fluorescent lamp give?"
* They turn on more quickly than do fluorescents. * They do not require / release mercury when they break. * They release a broader spectrum of light. * They make good heaters. * They keep releasing some light for a little time after the power is turned off. * They are simpler, cheaper and easier to manufacture. * They do not present a capacitive load on the power lines, like fluorescent lights do.
That's a great question, and totally depends on what you are looking for. You get get a small fluorescent or LED for as little as $20, great for indoor herb gardens or house plants. For more serious growers the price can be anywhere from a few hundred to a few thousand dollars. For a break down of the different types of lights and what they do, goto ledgrowlights.tk
i am asking the question
Apart from no, your question has no simple answer. Fluorescent lamps need a few kV to start them and have a 90V drop when running. All of that is provided by the "gear" needed to run a fluorescent lamp. In a compact fluorescent (CFL), the gear is inside the cap.
The answer is 0.04 kW. Since it says the bulb is a 40 watt bulb, just divide by 1000 to get the kW of the bulb.To answer this question correctly a time span must be given. How long will the bulb be energized to give the rating of kWhkilowatt hours.
The big question for me is , what is the room to be used for and how high is the ceiling? There are set lighting levels for different applications. For a room size that you stated there isn't going to be much light from these two 8' fixtures. If the walkway is going to be down the center and cages of either side, center the fixtures on the center of the walkway. This way the ends of the fixtures will be about 750mm from the end walls. If you haven't bought the fixtures yet get them with reflectors that will reflect more light downward. On a room this size I would recommend another row of lights of two fixtures. Measure the distance to center of the shortest wall (2905mm). Put a mark at the same position on the opposite wall. Snap a chalk line between these two points for the building centerline. For one row of lights use this line. For two rows of lights come off the side wall (1452.5mm) and put a mark. Put a mark at the same position on the opposite wall. Snap a chalk line between these two points for the fixtures centerline. For the second row, measure over (2905mm)from first row, two marks, snap chalk line. This is the center line for the second row.
This way to figure out the answer to this question has been given in detail in a related question: "What savings can a compact fluorescent lamp give?"
First it would depend upon the kind of light fixtures in question. As to the question of whether Justice Design Group offers bulk pricing or not would really depend, again, on which light fixture you are referring to. After a brief glance at their site I will tell you, no they do not offer bulk pricing. Good luck though.
So far, there is not a specific answer to this question. I know that the fluorescent flip flops are most likely in the recipe though.
To answer this question the voltage has to be given. I = W/E. Amps = Watts/Voltage.
No they are not full of Mercury.For more information see the Related Link and Related Question shown below.
There are too many variables to answer the question. Type of construction, location, layout, number of rooms, fixtures.
Fluorescent lights are an excellent choice for home, office, and school environments because they offer many benefits. Still, some myths persist that cause consumers to question the use of fluorescent bulbs. Here are the facts about this type of lighting. Myth: Fluorescent lights flicker, causing eye strain and even headaches. Fact: It used to be true that fluorescent lights had an annoying flicker, accompanied by a slight buzzing noise. Improved technology has eliminated these drawbacks. New fluorescent bulbs use an electronic ballast that produces a steady, silent light. Myth: Fluorescents are more energy-efficient than incandescent bulbs, but less efficient than halogen lighting. Fact: Compact fluorescent lights are almost three times more efficient than halogen bulbs (and more than ten times as efficient as incandescent bulbs). Moreover, fluorescent lighting doesn't consume any power when it is switched off. Halogen bulbs, in contrast, utilize transformers that can continue to consume power even when the light is turned off. Myth: Fluorescents are bad for the environment because they contain mercury. Fact: Fluorescent bulbs do contain a small bit of mercury, which means that they must be discarded in a responsible manner. However, not using fluorescent lights will result in even more mercury being released into the environment. This is because other forms of lighting consume more electricity, which is generated at this time mostly through the burning of fossil fuels. This produces power plant emissions containing mercury. The best way to reduce mercury in the environment is to burn fewer fossil fuels by using fluorescent lighting wherever possible. Myth: Fluorescent light bulbs won't fit inside certain light fixtures, such as the ceiling globes used in many factory-built homes. Fact: Again, this used to be the case, but the advent of the compact fluorescent light bulb changed everything. Today's fluorescent bulbs are smaller than a standard incandescent bulb and will fit in any lighting fixture designed for incandescent bulbs. Myth: You can't use fluorescent bulbs with dimmer switches. Fact: You can use dimmer switches that have set levels such as bright, brighter, and brightest -- as long as they are wired for fluorescent bulbs. However, continuous dimmer switches are still not used with fluorescents.
To select the right compact fluorescent dimmable bulb, factors to consider are bulb design, light output & power consumption, color, and recycling options. It is important to use good judgement regarding these factors and how you plan to use the lamp in question.
The answer to this question will continually change. Some Sundays there are no matches in Croke Park. Current fixtures and venues can be found on the GAA website at the link below.