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If you mean a Fluorescent tube light then no, you don't need DC. Household Fluorescent light tubes use AC mains electricity. The mains AC is passed through a ballast coil which reduces the current. A ballast coil works best when the AC mains voltage is at least 2 times the Fluorescent tubes working voltage. So, a simple inductor ballast can be used in Europe, where the line voltage is typically 220 to 240 Volts AC, to operate a 4 foot long tube, which operates at 85 to 100 volts, depending upon design.
In the US and other places that use 120 Volts AC mains, the ballast is a combination auto transformer (to raise the voltage) and an inductor (the current limiter).
What else can I help you with?
What are 4 types of DC voltage?
There is only 1 type of DC voltage, and that is direct current. In order to better answer your question, you need to be more specific.
Can a light bulb work on a DC voltage?
It can, but if you're wanting to run a 120v light bulb on DC, you'll need 120v DC to get the rated output. That's a lot of batteries. It's easier, and more sensible, to find a DC rated light bulb, such as an RV bulb.
What will happen if tube light is operated with a dc supply?
On a DC, even if the tube is managed to be switched ON, due to loss of inductive action ( as for DC supply inductive reactance is zero) the low impedance path of the tube so formed will draw a heavy current and might end up damaging the whole setup. The choke not only helps build the initial electrical pressure(voltage) for the tube to switch, but also maintains the current passing through the tube
Can you check dc voltage with light?
yes you can do it but may be exploads
How do you make ac into DC in a ac transformer?
You can not change AC into DC using a transformer. A transformer changes the voltage levels. To change AC into DC, you would need a rectifier. To change that into smooth DC you need a capaciter and a voltage regulater
Does tube light work with ac or dc?
Fluorescent lights work just fine on DC voltage, BUT one needs a current limited power source to stabilize the circuit against the negative resistance of the gas discharge. This can be done with either a resistor or an electronic circuit. The resistor solution is too lossy because excess voltage from the dc csupply has to be converted to heat across the resistor. Electronic switching supplies could supply a fluorescent light with a dc voltage and current without the losses. But that's technological overkill and most circuits still supply AC.
What makes a dc bulb different from an ac bulb?
The voltage source that is applied to them is the difference between AC and DC light bulbs.
Will a 12 volt light plug into a standard wall outlet?
No, it will cause the bulb to blow. A 12 volt light is DC voltage and your home outlet is AC voltage.
What DC Voltage would be need to power a universal motor that is powered by 230 V AC?
The conversion from one DC voltage to another requires electronic circuitry.
How you can change a constant DC voltage to a variable DC voltage?
By installing the varialble resistor in the circuit,the constant dc voltage would change .
How do you convert 23 voltage DC to 230 Voltage AC?
How do you convert 23 voltage DC to 230 Voltage AC?
How do you make a light go on when voltage is low and off when voltage is high?
You can use a transistor in conjuction with other circuit components. Connect the signal you are monitoring to the gate of an n-channel mosfet, put the light in series with the drain and connect it to positive voltage, connect the source through a resistance to ground. Disclaimer: The above requires you to have a DC source to power the transistor from drain to source. Also, this assumes you are monitoring a DC voltage. If you are sensing AC, you'll need to convert to DC first using a rectifier circuit. Finally, this will not sense "just a little" voltage, since it will take some to turn on the transistor. If you need it to work through full range 0 - whatever max voltage is, you'll need to use a JFET or a more elaborate biasing circuit.
