Brand new and professional module<br />High quality photosensitive diode relay module<br />1 Adopts photosensitive diode to sense the strength of light, together use with a relay, can directly control the load <br />2 Euipped with potentiometer to adjust the sensitivity. Set and start the relay threshold value by adjusting the potentiometer. When the strength of light is higher than this threshold value, relay module will attract to close while it is lower than the threshold, the relay module will break off. Therefore, connecting to the common port and normal open port controls daily switch while connecting to the common port and normal close port controls night switch.<br />3 Working voltage: DC 5V<br />4 Working current: 104 mA <br />5 Output forms: direct connect with AC 220V 10A or DC30V 10A load <br />6 With four mounting bolts holes for easy installation <br />7 Small PCB size: 5 x 2.6 x 1.7 cm <br />8 Weight: 16 g <br />9 Adopts wide voltage LM393 comparator<br />Function:<br />Light detection, brightness detection, test and adjust brightness threshold via potentiometer, comes with relays, can do all kinds of brightness detection switch. <br />Can control various street lights. They can automatically be opened at night while automaticlly shuts off in the daylight and control the car gadget and automatic equipment.<br />(Compared with the photosensitive resistance, it has better directivity. It can perceive light source in a fixed direction and test the light in right front of the photodiode. But the surrounding is difficult to be detected, it is often used to look for light).<br />1 x Module<br /><img src="http://img6.eachbuyer.com/x9/p100/bn125_1.jpg" />                                                        <img src="http://img6.eachbuyer.com/x9/p100/bn125_2.jpg" />                                                        <img src="http://img6.eachbuyer.com/x9/p100/bn125_3.jpg" />                                                        <img src="http://img6.eachbuyer.com/x9/p100/bn125_4.jpg" />