Description Product Reviews The SL-2 is a 360 LED Strobe and/or Beacon visual indicator. LEDs not only are more efficient and last longer than standard flash tubes but are also immune to shock and vibration. The LEDs are internally positioned to allow a 360 viewing angle when the unit is mounted vertically and a 120 viewing angle when side mounted. The SL-2 can be user programmed to output 4 different flash patterns: Single Flash, Double Flash, Quad Flash or Flicker Flash. The unit can also be programmed as a continuous-On Beacon only, Strobe only or Beacon/Strobe allowing a lower intensity beacon to remain on and a high intensity strobe to be activated by a contact closure. 6 different brightness levels are also programmable for the Beacon and the Strobe. All programming is stored in non-volatile memory so you wont lose the programming when the unit is powered down, allowing you to program units prior to installation. The SL-2 is designed for indoor applications and comes standard with a Blue shatter resistant polycarbonate lens. 0 Reviews Hide Reviews Product Reviews