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How to connect IP CCTV camera to your computer, no need by extra device such as DVR or NVR. Using ispy Open souse software You can install Single IP camera system on your computer. If you have small shop of you need few camera You can use this method. Open Source Camera Security Software Download link   https://www.ispyconnect.com

LED can be convert sunlight to Electricity. single LED can produce very low current and very low voltage. Therefore a single LED cannot be used for powering any device. To increase its output current and voltage, we will use a combination of leds which are connected both in parallel and in series. The advantage of this is that the parallel combination increases current rating while the series combination increases voltage rating.This kind Of solar panel you can use as school science or experiment only. You can not get sufficient current, at least charge mobile Phone.

How to create google earth drive test root and how to convert to mapinfo tab file using mapinfo. without drive test root very difficult to do drive test. so before do SSV or Cluster drive we need drive test root tab file. In this video I will show you how to write drive test root and how to convert it to mapinfo tab file using mapinfo.

Do you know the function of Residual Current Circuit Breaker (RCCB ) or ELCB . It is main function is Protect human Life from the electrical shock and earth faults in the wiring .RCCB is a current sensing device it is always measure phase and neutral current. It should be same in the normal condition. If it is defendant nearly 30 mA. It should Be off withing 100 ms. Plug Your RCCB tester and turn on the switch. If off Your RCCB, Your RCCB working Properly. If Not off or Bulb is continuously Glowing Your house wiring has a problem. Please contact Your Technician. If have any problem Please comment. like may video Please subscribe my channel. thank you.