USB-Powered PC Lamp
  
  
  
  
  
  
  
  
    
      
      
      
      
        
          
            
              
                
                  
  
    
      
      
      
      
    
  
  
      
      
  
                  
                  
                    
                      
                        
                        
        
                        
                            
                            
                            
                            
                              
                                
                                  
                                
                                  
                                
                              
                            
                            
  
  
 
  
      
         
      
      
  
  
  
						
                         
                        
						
          
             
          
                      
                      	                 
                      	
                      			
LDR acts as a light-dependent switch to turn on the lamp led when the ambient light in the room drops below the preset level. USB-Powered PC Lamp Transistors T1 and T2 (BC547) are used to switch on the lamp. The base of transistor T1 is connected to the voltage divider comprising LDR and preset (variable resistance).
                      		
                    	
                      
                    
     
                   
                    
                  
                
              
  
            
        
          
        
        
            
 
               
        
		
        
		
  		      
       
      
      
      
    
  
  
  
 
    
    
   
USB-Powered PC Lamp
            Available:In Stock
- Product SKU: LGKT084
          
₹ 249
           ₹ 299
   
                          
                          
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          Specification
Description
The USB-Powered PC Lamp circuit is powered by regulated 5V DC available from the USB socket of the PC. This White LED Lamp lets you use your PC or laptop at night without disturbing others’ sleep. It produces a soft white light just enough to see the keyboard in darkness as well as when the ambient light is poor during daytime.LDR acts as a light-dependent switch to turn on the lamp led when the ambient light in the room drops below the preset level. USB-Powered PC Lamp Transistors T1 and T2 (BC547) are used to switch on the lamp. The base of transistor T1 is connected to the voltage divider comprising LDR and preset (variable resistance).
Physical Attributes
- Dimensions (cm) L x W x H : 20 x 15 x 5
- Weight (gm): 200
 
        
       
          
       
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
  