In this tutorial I will show you how to make cheap and custom LED police bike lights. NOTE: I made these lights before, so the tutorial may not be very descriptive. If you have questions message me!
DISCLAIMER: I WILL NOT BE HELD RESPONSIBLE FOR THE ACTIONS OR CONSEQUENCES REGARDING THIS TUTORIAL. USE WITH CAUTION, IT IS A STATE AND FEDERAL CRIME TO IMPERSONATE A POLICE OFFICER.
Step 1: Materials
First gather your materials. You will need...
perfboard (the size depends on how many LEDs your lights will have)
LEDs (mine are red and blue high intensity LEDs)
Wire (any gauge is fine. I would recommend 20-24)
Resistors (Use a calculator to determine the amount of ohms)
Heat shrink tubing (I used a variety of sizes)
Switches (both toggle and momentary on)
Switch housing (I used a PVC T-connector)
12v battery source (I used an eight slot AA battery pack, but I will be installing a rechargeable battery)
Switch Flasher (SHO-ME EMERGENCY LED STROBE FLASHER 11.1005SF)
Mini zip ties (for attaching the lights to your bike/vehicle)
Step 2: Building the Lights
First lay out your LED design or pattern. I did two rectangles with a total of 12 LEDs for the handlebar lights and two rectangles with 6 LEDs for the rear lights. If you are doing two rows of LEDs per light, then make sure that your LEDs polarity is in the right direction on the perfboard.
Remember to measure the correct length of wire and give plenty of "wiggle room". Also remember to heat shrink the soldered connections between wires to ensure protection.
+ is the positive side of the LED (long side)
- is the negative side of the LED (short side)
~| is a piece of connection metal (I use the clipped of LED legs)
-+-+-+-+-> is the positive wire (red)
#470# is the resistor (make sure you are using the correct resistor for the LED and for 12 Volts)
-+-+-+-+-+-+-+-+-> + + + + + + ~|
- - - - - - |
+ + + + + + ~|
Step 3: Wiring the Lights and Controller
After you have built the desired number of LED lights, proceed to wire them up to the battery and controller (switch flasher). If you bought the sho-me switch flasher then the instructions should be included. Just in case here is the instructions:
O---- Switch ------------> +12V
| | /
| F | ----- Red Wire -----/
| L |
| A | ----- Blue Wire ---------------> Left LED
| S | ----- Yellow Wire ------------> Right LED
| H |
| E | ----- Black Wire -----------------------------------> -12V
| R |
| | ----- White Wire ------O--- Momentary Switch ---> +12V
Step 4: Setting Up the Switches
After completing the connections to the battery and the controller, begin to connect the switches. The switches are marked out in the last step.
Next test your lights, and if this tutorial has been thorough enough then they should be flashing now. If they are then proceed to the next and final step. If they are not flashing check your wiring and connections.
Step 5: FINAL STEP
Now your lights should be complete. Put a thin piece of foam behind each light to protect the bikes paint and to protect the solder joints. Next zip tie the lights to the desired place (i.e. Handlebar, rear rack, frame etc). Find a safe place to put the battery and controller (I made a case out of duct tape to protect the battery and controller from puddles and dust). Now, find a good place to put the switch box where it wont get bumped or moved. Finally use zip ties to organize the wires and make sure that the wires wont get broken or caught on your legs or in the gears.
Here is a vid of the final product. If you have questions or comments feel free to message me. HOPE THIS TUTORIAL (my first) WAS COMPLETE AND DESCRIPTIVE! ENJOY YOUR LIGHTS!