Bunkerhill Security Light Modification

I figured it out and you need to remove R2 in the new circuit. See my post, Dave AKA: Flying Eagle
Followup to this to get the light to stay on longer:
You still need to remove R2 labeled 20R0 to make the light turn off during cycles.
R15 is the resistor and C10 is the capacitor that controls the amount of time on.
The resistor installed in the factory unit is a 300K labeled 03D for the light to stay on for about 25 seconds
Here are some values to change R15 to for longer times on
R15 (Light Time on)
300K (25 sec) factory setting
680K (55 sec)
820K (65 sec)
1M (90 sec)
I am going to try adjusting C10 to increase the light time on longer.
 
Last edited:
Followup to this to get the light to stay on longer:
You still need to remove R2 labeled 20R0 to make the light turn off during cycles.
R15 is the resistor and C10 is the capacitor that controls the amount of time on.
The resistor installed in the factory unit is a 300K labeled 03D for the light to stay on for about 25 seconds
R15 is connected to U1 pin 8 PN: QL1001

Here are some values to change R15 to for longer times on
R15 (Light Time on)
300K (25 sec) factory setting
680K (55 sec)
820K (65 sec)
1M (90 sec)
I am going to try adjusting C10 to increase the light time on longer.
 
Top