It is a rechargeable device and does not require any battery support. One time charging can last up to 35 days without ny ambiguity. As it differs from person to person where the vein is located the intensity of the light can also be adjusted This device can be used for all ages. It can be used in clinics, hospitals, pediatric clinics, outpatient clinic centers, clinical laboratories, nursing homes, etc. This device is handy and can be hand held for hours. Due to its small and compact structure and wireless design this device is easier to carry anywhere and everywhere. It is light-weight and can be held by hand. Due to its illumination and large scale tracking the veins are visible to the medical personnel easily and don’t require multiple trials. It also helps to decrease the number of errors and clears the work in one go.