Screen Torch Advanced 2 - "Screen Torch Advanced 2", is an handy torch program. It only uses devices' backlight.
Zenity - Zenity is a tool that allows you to display GTK dialog boxes in commandline and shell scripts.
Simple Flashlight - A clean flashlight with an extra bright display and customizable stroboscope.
Yad - Yad (yet another dialog) is a fork of Zenity with many improvements, such as custom buttons...
Torchie - Touch to Torch
Glade - Glade is a RAD tool to enable quick & easy development of user interfaces for the GTK+ toolkit...