Portland Design Works Danger Zone TaillightPortland Design Works Danger Zone Taillight. The Portland Design Works Danger Zone has two brilliantly bright 0. 5 watt red LEDs by Nichia. It includes three modes (zZz a Ha! and Rock Steady) for up to 50 hours of run time using 2xAAA batteries. The Danger Zone installs in seconds to your seatpost with the included Stayputnik mount. Two 1 2 watt LEDs Three unique light settings: zZz aHA! and rock steady Includes Stayputnik quick release taillight