HT Enterprises Omni Stike lite is a super-lightweight and easily attaches to any tipup flag with the easy to mount “clip-on” feature. Boasting a stunning high intensity red light when the tip-up pops from the horizontal position. This red light can be seen from hundreds of feet away. When its time to pack up for the night, the battery is simply turned around and placed back into the light. Comes with single lithium Battery. HT has all your Tip-up Lights & Batteries covered.