The Obelux Low-Intensity Portable (LI-P) is a portable, battery-operated red obstruction light. It is available in the configurations red and red+IR (infrared). The Obelux LI-P is designed for outdoor use and features a shock-resistant polycarbonate enclosure. Typical battery operating time is up to 5 months (operating mode: red 32 cd, flash rate 20 flashes per minute, and photocell-controlled day/night operation). Optionally, the LI-P is also available with an integrated GPS receiver for flash synchronisation.