Daylight Visible Bike Light - Front/Rear Combo - 100 Lumens on 2 AA's

Step 15 Its done!

now put the batteries in, attach to bike and go make the cars feel your presence!

Comments

[tltaylorsw]

Nice light, I am a bike paramedic and would like to use a PIC (16F628A) in place of the 555 to provide 2 alternating flashing lights. would the same moset placement work for me?

Thanks in advance

[Gopher]

Can I use the same components and run the circuit on 4AA 2700mha Rechargeable and thus have more power from the 3W luxeons? IE will the extra power available simply make the LED brighter with no ill effect on components, obviously the led will need heat sink but what about the FET? or should it be heatsinked anyway for safety Basically I just want a single 3W led to blink at as high a brightness as possible from 4AA batteries

[civilpd]

I think I am going to build your light. What are the possibilities of using one the radio sh*ck 7.2v or 9.6v NiCad rechargeables? Would it overheat the LEDs or have other negative results?

[shortman]

This is good and you could also use a bike light generator th keep batteries charged as you drive. You would only need voltage reducer from 6 volts to 3.