Hi
i have built an IR motion detector which has a relay (powered by 12v) in which something like an alarm or light can be attached. I want to attach a 20w 12v spotlight to the relay so that when motion is detected the light will turn on.
I have two queries in this regard:
1. how on earth do i connect the light source to the relay (i.e what, in addition to the light itself, is required and how is it actually connected?)
2. i want to install this outside so would prefer to use a battery. Is that possible and practical, or will all batteries with this set up be drained to quickly?
thanks
i have built an IR motion detector which has a relay (powered by 12v) in which something like an alarm or light can be attached. I want to attach a 20w 12v spotlight to the relay so that when motion is detected the light will turn on.
I have two queries in this regard:
1. how on earth do i connect the light source to the relay (i.e what, in addition to the light itself, is required and how is it actually connected?)
2. i want to install this outside so would prefer to use a battery. Is that possible and practical, or will all batteries with this set up be drained to quickly?
thanks