Features: 
1. Three flash modes: fast flash-slow flash-always on, to meet the needs of different scenes. 
2. Install as you wish, widely compatible, almost universally used in all drones on the market. 
3. High-brightness strobe warning lights, night flight direction guidance, safer flight. 
4. The red and green double-color flashing lights are convenient to distinguish the head and tail direction of the drone when flying at night. 
5. Strong battery life: it can be used for about 120 minutes when it is flashing, and it can be used for about 30 minutes when it is always on. 
6. Additional 8 CR927 button batteries + 4 adhesive sheets 

Product specifications: 
1. Light source mode: Fast flashing/slow flashing/constant light 
2. Brightness: 30-40LM 
3. Battery model: CR927 
4. Power: 0.5W 
5. Battery capacity: (3V/30mAh)x2 
6. Use time: Flash for about 120 minutes; always on for about 30 minutes 
7. Product size: 17x17x13mm 
9. Net weight: 3g