Bucket Fly Zapper




Pests are always a menace for us. We know that controlling pests is not an easy task. But when we find the weakness of insects we can easily control it. Their weakness is 'Positive Phototaxis' (ie, bodily movement of insects towards light). Here I constructed this instructable based on that idea - 'many flying insects are attracted towards Light!'

I here changed a bucket into a fly swatter with light. When insects attracted towards the light which I placed inside the bucket, they will die by the high voltage mesh when it crosses through it.

Step 1: Components and Tools Needed:

Current conducting Nets (2)
Hacksaw blade
Stepup Transformer
154nf capacitor
Resistors (32M, 3k, 1.2k, 680 ohm)
LED light
3v battery
D1616 transistor
Insulation tape

Step 2: Starting With Circuit

Make the circuit as shown in the circuit diagram. And solder it.

Step 3: Connecting 3v Battery

Here I have used a 3volt CR2025 battery. Now when you switch on the circuit the terminals we connected at the end of the circuit will cause high voltage at least nearly 400v. So pls be cautious.

when we switch on the circuit the LED will glow.

Step 4: Working With Bucket

Cut the bucket at two places in order to insert the net inside it. I here used thread to mark and cut perfectly. The distance between two cuts should not be so close and it should not be so far. 5mm - 1cm distance might be good.

Step 5: Fitting Light

Also make a hole at the centre of the bucket in order to place a bulb.

Then connect the bulb at that hole.

Step 6: Inserting Meshes

Now insert two meshes through the cuts.

Step 7: Connecting Circuit With Bucket

Now connect the circuit with the meshes. Connect the positive terminal of the circuit with inside mesh. And connect the negative terminal with outside mesh.

I used Sellotape in order to avoid short-circuit.

Step 8: Testing

Now we can check whether it works good or not. Touch both meshes simultaneously with a screwdriver, if it sparks it is working good.

Step 9: Final Step

Connect the bulb with the Power supply.

Step 10: It's Ready Now!

Test once again And just forget about insect menace. Insects automatically fly towards our light and will die.

I hacked my day;-)

Bucket Challenge

Runner Up in the
Bucket Challenge

Pest Control Challenge

Participated in the
Pest Control Challenge

Hack Your Day Contest

Participated in the
Hack Your Day Contest



    • Sew Tough Challenge

      Sew Tough Challenge
    • DIY Summer Camp Contest

      DIY Summer Camp Contest
    • Growing Beyond Earth Maker Contest

      Growing Beyond Earth Maker Contest

    14 Discussions


    7 months ago

    where did you connect the lightbulb to? You don't show it. Also, is there any diodes needed? And lastly, doesn't the plastic bucket get hot from the light? Very cool idea by the way.


    3 years ago

    How did you transform DC power with a transformer???

    1 reply

    Reply 1 year ago

    You'll see that the transformer has a center tap on the right side - this is wired to the base of the transistor in such a way that the circuit on the right side will oscillate.

    Unfortunately the turns ratio of the transformer is not specified anywhere I can see...


    3 years ago

    What transformer did you use, primary and secondary voltage please.

    2 replies

    Reply 3 years ago

    Effects of giving a constant DC input to a transformer:
    we know, for an inductor v=Ldi/dt, since v is constant here, the
    i(current) will follow a ramp waveform and will keep on increasing till
    the core saturates.
    2. This meaning i will rise to a dangerously high
    value and then stops changing, if i stops changing then the induced
    voltage across the primary will be zero(as di/dt=0) thus short
    circuiting the DC source.
    3. Heavy short circuit current will flow,
    overheating the coils, resulting in I squared R losses. Temperature rise
    will exceed safe values and eventually the apparatus will catch fire.
    Short circuit currents will result in radial magnetic forces that will
    rip apart the winding and the windings become exposed to the atmosphere.
    Transformer oil may catch fire under short circuit conditions.
    5. So we must never apply a DC voltage to a transformer during operating conditions.

    Pulsating DC can be applied to transformers, such the flux reset occurs
    in the negative pulse period. The concept is to make the time integral
    of voltage zero in one complete period, this helps in resetting the
    flux. The ubiquitous Switched Mode Power Supply(SMPS) forms the
    quintessence of this concept.


    Reply 3 years ago

    Come on, give us a break. Its an oscillator with a feedback winding in the primary. Yes, pulsing DC.

    "Transformer oil may catch fire..." Lets get real, this is a dry transformer, no oil! Please, lets not over react. :-)


    3 years ago

    Congrats on being a finalist/runner up! I voted for this :)


    3 years ago

    Great ideal will try this summer at the our out door psrtys Thanks


    3 years ago

    OK you humans, keep on making these great devices. (Which is very nice by the way.) We have taken over this ones feeble mind and he will build an electrified BBQ. So next time you go for a smoken' good hotdog, zzzaappp, back in to the dust where you belong. CLICK-CLICK-CLICK-CLICK-CLICK, eh, I mean HA HA HA HAAA !


    3 years ago

    that's pretty cool! thanks for sharing :)

    bfyzaltimi olutaiwo

    Reply 3 years ago

    Thanks Frnd :-)

    If you think it is good please don't forget to vote for this in contests.