Night-Writer is a photography tool designed for illustrating with light.
Use it as you would a marker during a long exposure at night - press the top button and the light turns on, lift your finger and the light turns off.
Product works best when used with a DSLR camera set to 'bulb-mode' along with a tripod and shutter release.
LED is bright-white - you can use color-tips to produce alternative color effects. One White tip is included with purchase. Night-Writer is designed with interior grooves that lock color-tips into place over the light-source. It's symmetrical design accommodates both left and right-handed users.
Takes 2 AAA batteries (included). Due to the small amount of power this device consumes and the momentary way in which it is used, Night-Writer can stay bright for a year or more before needing new batteries.