- #1
DaveC426913
Gold Member
- 22,497
- 6,167
Almost 20 years since I took Electronics in night school.
I have a 12V circuit with two lights and two switches.
I want:
- S1 to light up L1.
- S2 to light up both L1 AND L2.
How can I do this?
(In case it comes up, I do NOT want to run a second wire to one of the lights (like you might do in a three-way circuit) because the lights are distant and inaccessible.)
Here is some context in case it helps:
My boat runs off a car battery. I have 1] running lights and 2] a masthead-mounted anchor light that doubles as a steaming light (which is one of several running lights).
One switch will turn on the anchor light ONLY.
Another switch will turn on running lights which INCLUDES the anchor/steaming light.
I do not want to have to turn on two switches to get my running lights going.
I have a 12V circuit with two lights and two switches.
I want:
- S1 to light up L1.
- S2 to light up both L1 AND L2.
How can I do this?
(In case it comes up, I do NOT want to run a second wire to one of the lights (like you might do in a three-way circuit) because the lights are distant and inaccessible.)
Here is some context in case it helps:
My boat runs off a car battery. I have 1] running lights and 2] a masthead-mounted anchor light that doubles as a steaming light (which is one of several running lights).
One switch will turn on the anchor light ONLY.
Another switch will turn on running lights which INCLUDES the anchor/steaming light.
I do not want to have to turn on two switches to get my running lights going.
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