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battery powered fluorescent bulb

Discussion in 'Electronic Basics' started by Brett Cummins, Jul 29, 2004.

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  1. Hey!
    I'm trying to make a 9 watt fluorescent bulb to light up with a
    battery. How many volts of a battery do I need. Just a regular 9volt
    battery? How would I connect all of this?

    -Thanks!
     
  2. First of all, a 9 watt load will kill a regular 9 volt battery in
    minutes, if it runs without collapsing the voltage, at all. So think
    either smaller bulb or bigger battery.

    Here is an example of such a circuit:
    http://www.aaroncake.net/circuits/flampdrv.htm
     
  3. L.

    L. Guest

    I don't know what "wattage" this Fluorescent bulb is (its an F4T5D bulb),
    but there ARE or WERE flashlights made - which on one end, had a regular
    bulb, in the center on one side, had a fluorescent bulb. A switch chose
    between the two. This unit uses 3 "C" cells for either purpose. There is a
    circuit board in the flashlight body to jack up the voltage/current needs. A
    sticker says not to turn on the flashlight in the Fluorescent mode, with out
    the bulb in place. I can send a e-mail pic of it, if you desire. I've never
    ran it endlessly for measuring time of battery life, but off and on, it's
    lasted a little while.

    L.
     
  4. That bulb is rated at 4 watts, though it can be run at lower power.
    http://www.prolighting.com/64wt52buda.html
     
  5. L.

    L. Guest

    I didn't figure it to be too high in rating. It is ok to read a book by -
    if need be, or to see one's way around. Not the brightest of lights, but
    better than being in the dark.

    L.
     
  6. I didn't figure it to be too high in rating. It is ok to read a book by -
    Thanks for all the responses!...

    However, if I connected two 9v batteries together to power a 4 watt
    bulb, would that work better? Thanks again!
     
  7. L.

    L. Guest

    I some how do not think so, but have never tried it! There is a circuit
    board in this flashlight to boost the voltage, but to what, I don't know.
    Your 9/18 vdc may work. You won't know til you try.

    L.
     
  8. Lets see. You cut the power load in half (9 vs 4 watt) and double the
    available power. John Popelish said 'First of all, a 9 watt load will
    kill a regular 9 volt battery in minutes, if it runs without
    collapsing the voltage, at all.' What you're suggesting might run 4
    times longer-- not much reading time unless you are a real speed
    reader.
    GG
     
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