4Sight utilizes the iPhones flash and creates a very bright flashlight.
Note: Device must have flash for this application to be useful.
Disclaimer: this can drain the battery quickly, so use wisely!
Strobe feature may cause epileptic seizures in people who may be sensitive to hight speed flashing lights. Please do not point light with strobe feature enabled at peoples faces. Seek professional advice before using the strobe feature.