Princeton Tec Pulsar LED Pocket Light. The PULSAR Flashlight can go anywhere and makes an excellent micro-backup light. Squeeze to activate the Ultrabright LED and you will always have light where you need it. Slightly larger than a quarter and weighing seven grams, the Pulsar provides instant illumination for any situation, including unanticipated emergencies. It takes only a squeeze of the lightweight body to access the unbelievable intensity of the Ultrabright White LED, making the Pulsar the perfect choice for key chains, backpacks, book bags, and zippers. They make great gifts too!!