Works with all our Destroyer, 30LR, 38LRX, 50LR, 50LRX, 66LR and 66LRX lights. Will not work on any of our Mini-Sniper, 20LRX or Coyote Cannon Lights. Available in 1 mode high only. Heavy duty Lanyard made out of Paracord. This tail cap uses a tactical switch so you can turn the light on by slightly depressing the button and as long as you keep pressure on it the light will stay on and will not make any noise or you can press the button all the way down and the light will stay on until you push the button all the way down again. Will make a click noise when you push the button all the way down.