I bought four Stobes HERE, white/white are the brightest. The Arc XL has six LED instead of the five shown in the photo. They are light weight and carry about a six hour charge. They're easy to mount and turn on.
I have two on the front, set to a fast strobe and two on the back at a slow strobe. I've only had them 1,600 ft out but you can easily see them. It's also easy to distinguish which way the drone is pointing by the speed of the strobes. As you know, once the drone gets past about 1/3 of a mile out, it's not always easy to see. With these strobes it's easy to see.
If you let them rest in place for over 4 minutes without flying, an audible alarm sounds, it's the Lost Drone Alarm and will beep until the light is moved or the battery dies. The alarm is rated at 90 db, it's closer to 75 db but should help to find a lost done.
I install them every time I fly.
I have two on the front, set to a fast strobe and two on the back at a slow strobe. I've only had them 1,600 ft out but you can easily see them. It's also easy to distinguish which way the drone is pointing by the speed of the strobes. As you know, once the drone gets past about 1/3 of a mile out, it's not always easy to see. With these strobes it's easy to see.
If you let them rest in place for over 4 minutes without flying, an audible alarm sounds, it's the Lost Drone Alarm and will beep until the light is moved or the battery dies. The alarm is rated at 90 db, it's closer to 75 db but should help to find a lost done.
I install them every time I fly.