The Red-tailed Hawk Project has been working with Interrex for four years now, and our experience with the 4G Lego with the honeycomb style elevated solar panel has been excellent. The units fit perfectly on the hawks, are durable, and the performance has been superb. These devices come at an excellent price point and are very reliable. On top of all of that, the customer service has also been excellent. All issues and questions have been addressed quickly and with care.
I highly recommend working with Interrex and Druid units.