3 flash modes: fast flash - slow flash - always on, to meet the needs of different scenarios Easy to install, widely compatible, and applicable to almost all drones on the market High-brightness strobe warning light, night flight direction guidance, flight Red and green dual-color strobe light is convenient for distinguishing the and tail direction of the drone during night flight Strong battery life: about 120 minutes when flashing, about 30 minutes when always on Product name:Drone flashing night navigation light mode:fast flash/slow flash/constant light Brightness:30-40LM Battery model:CR927 Power:0.5W Battery capacity:(3V/30mAh)*2 Usage time:flashing for about 120 minutes; constant light for about 30 minutes Colour:Transparent Material:Plastic Package Contents: 4 * Strobe light(battery and pad installed) 8 * Battery 4 * Mat Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm. Note: 1.Please allow 1-3 mm error due to manual measurement and 1-3g weight error make sure you don't mind before ordering. 2.Due to the lighting of the photos and the difference of monitors, the pictures may not reflect the actual color of the real item. Please make sure you don't mind before ordering, thank you! About Shipping: 1.please pay attention to your delivery address such as: name, street, house number, doorbell/email without name, etc. is correct, or the order will not be delivered correctly. 2.All items will be shipped within 3 business days after the payment is received. Most times you will receive them within 8-12 days then. The specific delivery time is depend on circumstances. 3.During the shopping process, if you have any questions, please feel free to consult us, we will reply you within 2726 hours Hope you have a pleasant shopping experience!