High Efficiency Solar Panel: Equipped with a monocrystalline silicon solar panel achieving a 24.3% conversion rate. With tempered glass material, IP66 water proof, provides robust protecting against harsh environments, support your LoRa meshtastic device can always works outdoors, no need to charge battery in frequently The 5W Solar Panel is equipped with a built-in battery controller, LoRa antenna, and module slot bracket. You can customize your own LoRa meshtastic device. (Excluding battery and module) Easy installation: With a 360° rotating ball head and bracket, making it easy to mount on trees, posts, or terrain. The angle can be easily adjusted for optimal positioning. The universal 1/4-inch thread, Weight: 1.6975594174 pounds, Manufacturer: Tuidzljd