The present invention relates to a portable lighting device comprising a body, a light source coupled to the body and configured to emit a beam of light along a central axis, a head assembly rotatably coupled to the body, and a filter assembly rotatably coupled to the body. The in vivo device may include a holding unit, for example a cap for holding the substance, and sensing means, for example a sensor, an imager and an illumination source, for capturing various information in relation to the changes occurring in the substance. House odds andor house advantage may be stored until the lockout period ends, and may optionally be confirmed prior to being set for the player. First and second pairs of angular links are connected to the sides, and a pair of legs are connected to, and extend outward from, one side of the connector.