Here’s a really cool DIY Iron Man Beam Blaster you can build yourself. The device emits high levels of LED/Xenon flashlights, which can surely be frightening for your wife, kids, and dogs/cats.
Built with parts from a disposable camera, this could surely be a great weapon in blinding your enemies.
The function of this circuit is to gradually step up the 3V source up until 330V, and releasing the stored charges very rapidly when triggered. High current and voltage are needed to energize the Xenon gas inside the tube bulb yielding intense but short burst of light.