Okay, glad to assist. I have one ARC2 on the front, one on the back. They are about one inch square, the one in the attached pictures I mount on the top of the drone. You can see the velcro strip on the underside of it, adhered to its battery
. I have placed another velcro strip on the top of each of my Mavic Air 2 batteries
, which I then attach that strobe to, and also my Tile Pro, which also has a velcro strip.
The other two strobes are attached to the Mavic's front and back legs with a 3d printed custom holder specifically made for the ARC2 strobes, you can purchase the online also. They simply snap on over the legs, they are made of soft-ish but firm rubber composite of some sort, the strobes are fairly easy to snap in and out of them. I have a red one at the back, white at the front, and white on top. The two for the legs do not have any velcro strips attached. So, because the top one attaches to the drone's battery
, it does not interfere with any GPS reception on the front half of the top of the drone. On my Spark, I put a velcro strip on the top of the back of the drone, which drapes down over the back of the battery
when installed, and I attach the strobe to that... so just one on the spark. The strobes themselves take about 45 minutes to charge, and I get about 2-3 flights (~20 mins each) before they start getting dim or quit completely.
I hope that clarifies. They do increase the distance you can maintain visual contact with the aircraft, and also show that you are serious about additional safety should the authorities want to check your craft. Cant hurt eh!
Okay, so if you, like I , have exhausted the local scenery for sharing, then we must endeavour to go further afield. No worries. Cheers.