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Automatic light switch for aromatically turn on the light, after nightfall.
From $10.00
The device beeps when:
- The car lights is on and the door is open - forget to turn it off.
From $10.70
A very good designed circuit of a stable adjustable DC regulator using IC LM317T. LM317T is a very famous IC and supporting input voltage is from 3 volt to 40 volt DC and delivers a stable output between 1.25 volt to 36 volt DC.
$9.00
$7.50
DC motor switching module
With reversing the polarity when receive 12V at control input.
$8.00
$7.50
This device can be used as a regulator speed for the drill, fan, controller for lighting, temperature regulator etc. The scheme have 97% efficiency and loss only 3% energy.
$10.00
$9.50
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12V 5 LED OUTPUTS 5 x 12w 1A
Each led will come on after previous and when all led come on - they will turn off and start from beginning.
To see how it works go to:
https://youtu.be/jLvyXsaq-cA
$9.80
$8.90
This controller is designed to control small 12VDC electric doors - chicken, garage, gate ets.
Have build in 2 timers, for open and close the door, with reversing the polarity. Each timer is adgustable from 0 to 25 sec
With build in LIGHT SENSOR with adjustable sensitivity for automatic open and close the door on sunrise and sunset.
Have led indication for working timer yellow - in one direction, red - in other direction, green - for active light sensor
From $19.00