What is the cost of switching new street light bulbs?
482508
It is really a matter of which type of bulb you use.
907449
Two- one to change it, the other one to scratch its bottom. :-)\n\nHow many economists does it take to screw in a light bulb?\n\nNone. If the light bulb really needed changing, market forces would have already caused it to happen.
541479
easy. \n\nthere are A B C  switches.... leave A switch alone...\n\nturn B on for 10 minutes...... then turn it off. turn C on and go into the room...\n\nif the bulb is cold and off it belongs to A\n\nif its off and hott it belongs to letter B switch,\n\nand if its currently on... its the C swicth
518406
equivalent to 4   100 Watt  Bulbs
1116170
Not quickly enough!\nIt takes a few minutes (not seconds, like in the commercial!) for the complete change to occur.\nI even had to hold my glasses outside of my window to get them to change when I got in my car....there wasn't enough brightness to get them to change otherwise!\nI couldn't stand mine, so I got rid of them!
359883
half price of a new unit or less
211055
http://www.oneaddplace.com/\nhttp://www.ncpamd.com/Adult_ADD.htm\nhttp://www.mental-health-matters.com/articles/article.php?artID=463\nthe first one is my favorite\nADD person who should be working but is answering your question instead.\nQuestoin: how many ADD does it take to change a light bulb?\nAnswer: wanna ride bikes?
215667
check ur connections and see if there are any loose wire or burnt bulbs
846673
The light bulb uses energy and the energy after a while get hot. If you touch 650 watt or higher it will burn out like that, because the chemical in the bulb are keep the filament on the wire because it get way too hot. The Chemicals get use to your body heat and cool down real fast. It leaves a real cool black/grey bump on it but those bulb cost 20$$ each. They are make for lights that need to be on for a while or need to last for a long time, light street lights.
910581
Go to your local hardware store and purchase a one of those small plug in circuit testers with the three LEDs. Plug it in and in less than a second, you will know exactly what is wrong (reverse polarity, open neutral, open ground, etc....) I think they cost around $3.50 - and they are very handy.\n\nBe sure to cut the power before attempting any repairs.\n\nI suspect you'll find that the three outlets are on the same line (circuit) and the originating plug has lost the neutral wire - just a guess based on 35 years experience.
975896
Energy is measured in watts, so I assume you mean a voltage source of 200v.\n\n(1)\nThe voltage source of 200v applied to the light bulb (laminar) will be 200v.  Since the light bulb is designed for 130v, the supply voltage will likely blow the bulb.\n\n(2)\nHere you have two possibilities, depending on your circuit.\n(a) If you have a parallel circuit, then each light bulb will have 200v across it, and again the bulbs will likely blow because the voltage is to high.\n(b) If you have a series circuit, the voltage across the light bulbs will be subject to their resistance.  Assuming the resistance is the same, then the voltage will be the same, that is, 100v each.\nThe voltage across each light bulb will be equally proportional to it's resistance ratio.
557642
never pay more than 100 dollars. they red light district in germany charges around 50 dollars and they woman are clean because it is ran by the government
916913
On 10 December 1868, the first traffic lights were installed outside the British Houses of Parliament in London, by the railway engineer J.P. Knight. They resembled railway signals of the time, with semaphore arms and red and green gas lamps for night use. The gas lantern was turned with a lever at its base so that the appropriate light faced traffic. Unfortunately, it exploded on 2 January 1869, injuring the policeman who was operating it.\n\nOptics and Lighting\nIn the mid 1990s, cost-effective traffic light lamps using light-emitting diodes (LEDs) were developed; prior to this date traffic lights were designed using incandescent or halogen light bulbs. Unlike the incandescent-based lamps, which use a single large bulb, the LED-based lamps consist of an array of LED elements, arranged in various patterns. When viewed from a distance, the array appears as a continuous light source.\n\nLED-based lamps have numerous advantages over incandescent lamps; among them are:\n\n    * Much greater energy efficiency\n    * Much longer lifetime between replacement, measured in years rather than months. Some of the longer lifetime is due to the fact that the light is an array which allows the light to be used even if some of the LEDs in the array are dead.\n    * Brighter illumination with better contrast even in direct sunlight.\n    * The ability to display multiple colors and patterns from the same lamp. Individual LED elements can be enabled or disabled, and different color LEDs can be mixed in the same lamp.\n    * Much faster switching.\n    * Instead of a sudden burn-out like incandescent-based lights, LEDs start to gradually dim out when they're past their prime, allowing transportation maintenance departments to be warned well in advance as to when to change the light.\n\nThe operational expenses of LED-based signals are far lower than equivalent incandescent-based lights. As a result, most new traffic light deployments in the United States, Canada and elsewhere have been implemented using LED-based lamps; in addition many existing deployments of incandescent traffic lights are being replaced. Many of the more exotic traffic signals discussed on this page would not be possible to construct without using LED technology. However, color-changing LEDs are in their infancy and may surpass the multi-color array technology.\n\nIn some areas, LED-based signals have been fitted (or retrofitted) with special Fresnel lenses and/or diffusers to limit the line of sight to a single lane. These signals typically have a "projector"-like visibility; and maintain an intentionally limited range of view.
849490
No -- more than likely, they just Pull out -- and if it is like most -- then you can purchase those tiny multi-color lights that have the little twin wires coming out of them for replacements.\n\nSo I would suggest you go to your local Discounter and look first in their Christmas Displays for a Mini-Light Puller -- and purchase it (shouldn't be more than a couple of dollars).  Use that mini light puller on the light itself (you will know it is mini lights if the light is sitting in a plastic base with what looks like a separation between the base and a plastic ring).  Then insert the puller so that it is lodged in the separation, and pull straight up.\n\nIF that works -- congrats, you have mini-lights in your Pre-Lit Christmas Tree.\n\nOtherwise, if it is a Fiber Optic Tree -- the procedure is pretty much the same -- but there will be a Halogen Bulb in the base that will screw apart (or sometimes pull apart too) and you will be able to replace that as well.
94366
Check your local Home Depot.  40 watt is the 4' bulb with the plant/aquarium label.  (appx $7).  get an inexpensive 4' single bulb fixture with cord and pull chain on/off (appx $8).  If you want rapid start, i believe you're just wanting something that doesn't take a long time to come on.  Just ask if is has a magnetic ballast or a rapid start ballast.  For a few dollars more get an electronic ballast and drop down to a 32 watt T8 bulb, which will cost a little more initally, but it will last longer, reduce energy costs and turn on and off like an incandescent bulb.  One warning though, don't use these around reptiles.  The frequency that these ballasts and bulbs operate at creates a strobe effect to reptiles and will drive them insane.  Consult a pet store if you're looking for something to use around reptiles.
330950
actualy, i think they use the same voltage, but have a transformer on the batery to up the voltage to the needed amount. are you looking for the bulb, or a batery powered fixture. you use a standard bulb, you can find it anywhere florescant bulbs are sold. i have seen those fixtures at spencer's and places like that.
1137293
Zero. They won't do it. Engineers are too busy to change light bulbs and it's beneath them. Just one and he/she will tell you.