When holding the portable gas lamp in your hands, with fists up, your screen begins to slowly fade to black. It remains black until you turn off the light. Then the screen slowly begins to return to normal. Seems it's always a slow transition so you can interrupt the transition at any time by throwing it/turning off the light/putting hands down at sides.

When the portable lamp is in your hands but at the "down position" there are no problems. There is also no problems when the lamp is in your "fists up" hand IF it's turned off. The problem occurs only when it's on.

Refer to screenshots in portlampscreenies.zip to see fade to black transition. {F30808}