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My $8 "dumb" LED outdoor bulbs have sunrise/sunset sensors built in...

• oh_sigh 9y ago
  Can you have them turn on 30 mins before sunset?
  • zild3d 9y ago
    that would definitely require them to not be "dumb" anymore. A simple sunset/sunrise detector can be had from a cheap photo-resistor. 30 minutes prior to sunset sounds like it needs at least a micro controller with a real time clock and a lookup table with sunset times
  • lttlrck 9y ago
    You can get an astronomical light switch that replaces the manual light switch that can do that and more based around actual sunrise/sunset time for $30 - it’s a little pricey but they just work.
    • agentdrtran 9y ago
      All of my Zigbee stuff 'just works' as well and is under $30/bulb for basic lights.
      • brewdad 9y ago
        Yes but I have 4 bulbs outdoors controlled by my $27 switch. Bulbs will fail over time, especially when exposed to the elements and seasonal temperature swings. I can set my lights to turn on off at a fixed time relative to sunset/rise or randomize it +- 30 mins. All with a switch that I bought at a big box store 10 years ago.
  • semi-extrinsic 9y ago
    There is usually a screw to adjust at what light level they turn on. So I suppose you could hit the 30 min. mark with some trial and error. But why would you?