do cfl light bulbs run on ac or dc current?
2007-02-03 03:26:47 · 9 answers · asked by nasserc267 1 in Science & Mathematics ➔ Physics
Peter is the only correct answer so far. All quality cf lamps run at high frequency.
Scientific boy... You are wrong, halogen lamps run on ac, 240 volt mains or 12v. low voltage in the UK. (Unless you are talking about car headlights??)
2007-02-03 03:49:15 · answer #1 · answered by jayktee96 7 · 0⤊ 0⤋
There are two types, those with a replaceable tube run on AC like any strip light. The "Low Energy" type convert the 250AC to around 300 DC, and then run a transistorised high frequency inverter to run the tube at around 30 kHz or higher. That's where the high efficiency comes from.
2007-02-03 03:42:18 · answer #2 · answered by The original Peter G 7 · 1⤊ 0⤋
The bulbs are driven by a 60 Hz AC signal. It's actually flashing on and off at 60 times per second because of the poitive and negative cycles of the AC signal.
2007-02-03 03:43:25 · answer #3 · answered by copenhagen smile 4 · 0⤊ 1⤋
normally in europe current is AC 220-230V 50 Hz
in USA is 110-120V 60Hz
so light bulbs use AC.
BUT
halogen lamps runs on DC, they have a AC-DC converter.
there are neon lamps that works with AC or DC
CFLs are produced for both AC input and DC input. DC CFLs are popular for use in recreational vehicles and off-the-grid housing
normal CFL light bulbs for houses ar AC of course.
2007-02-03 03:38:47 · answer #4 · answered by scientific_boy3434 5 · 0⤊ 3⤋
They run on AC just like everything that you plug into a socket in your house. DC currant is found in batteries.
2007-02-03 03:36:31 · answer #5 · answered by Anonymous · 2⤊ 1⤋
Normally they run on AC (the ones in my house run on AC).
2007-02-03 03:30:58 · answer #6 · answered by Swamy 7 · 1⤊ 1⤋
ac, just like the rest of your house electric appliances
2007-02-03 03:29:25 · answer #7 · answered by Splishy 7 · 1⤊ 2⤋
They run on DC current similar to our other home appliances. Only they have some sort ot mirror or reflector in them which makes them shine more brightly.
2007-02-03 03:30:37 · answer #8 · answered by Anonymous · 0⤊ 4⤋
AC
2007-02-03 07:26:42 · answer #9 · answered by ⇐DâV£ MaΧiMiÅnO⇒ 6 · 0⤊ 0⤋