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Looking for some kind of lamp relay/trigger

Discussion in 'General Electronics Discussion' started by RickL, Oct 21, 2019.

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  1. RickL


    Oct 21, 2019
    Hi, I'm a newbie here. I've dabbed into electronics here and there, but don't consider myself an expert. I am deaf, and I use an alarm clock that has an outlet on the back to plug a lamp in. When my alarm goes off, it flashes the lamp on and off. This is the 3rd time I replaced it, because the quality is inferior. There are lots of alarm clocks that have a 12v vibrating puck that vibrates when the alarm goes off. I hate those vibrators and prefer flashing lights. I want to make some kind of relay that would let me buy a clock that uses the 12v 3.5mm output jack to some relay, and plug my lamp into. When the alarm goes off, my light flashes with this kind of set up. Any suggestions on how I should go about it? I've attached a picture. Thanks!

    Attached Files:

  2. Frankchie


    Nov 14, 2017
    You might want to look at automotive type 12v cigarette lighter strobe lights sometimes used for emergencies. You will need to determine the 12v current capacity of your clock. My guess is that capacity will be less than 1 amp (12 watts) so you will need to find a strobe light rated at less than 1 amp. Amazon has a bunch of strobe lights but finding one to match the max capacity of your clock amperage might be a problem.

    Here's one that might work. Again check the current capacity of your clock.

    With this solution you will not have to worry about relays or playing with 120 volt circuits.
  3. RickL


    Oct 21, 2019
    Thanks. I will look into that.
  4. Bluejets


    Oct 5, 2014
    There are the units related to smoke alarms which vibrate the pillow and flash a light which are decent quality but they are bluetoothed to the smoke alarm.(Brooks)
    They may make other variations, I don't know.
    They are expensive because of the quality, reliability and low consumption rate as compared to many other everyday electronics.
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