I have a "real" alarm at the front of the house, and a dummy box at the back (where it can be seen from another road)
I was thinking of putting a flashing LED in the dummy. I know nothing about these things.
I have looked at some LEDs that say
"REVERSE VOLTAGE: 5.0 V
DC FORWARD VOLTAGE: 4.5V TYPICAL
DC FORWARD CURRENT :20~30mA "
What is the significance of the Forward and Reverse voltages?
I would like to put a big, long-life battery in it that will hopefully last for years (it will need a ladder to change) with soldered joints that will resist tarnishing or going wrong
I have not seen any kits ready assembled to suit but surely they exist?
I was thinking of putting a flashing LED in the dummy. I know nothing about these things.
I have looked at some LEDs that say
"REVERSE VOLTAGE: 5.0 V
DC FORWARD VOLTAGE: 4.5V TYPICAL
DC FORWARD CURRENT :20~30mA "
What is the significance of the Forward and Reverse voltages?
I would like to put a big, long-life battery in it that will hopefully last for years (it will need a ladder to change) with soldered joints that will resist tarnishing or going wrong
I have not seen any kits ready assembled to suit but surely they exist?