3 flash modes: fast flash, slow flash, and always on, designed to meet the needs of various scenarios Easy to install and widely compatible with most drones available on the market High-brightness strobe warning light provides night flight visibility and directional guidance Red and green dual-color lights help distinguish the front and rear orientation of the drone during nighttime operation Long battery life: approximately 120 minutes in flashing mode and about 30 minutes in constant-on mode Product name: Drone Flashing Night Navigation Light Modes: Fast flash, slow flash, constant light Brightness: 30-40 lumens Battery type: CR927 Power: 0.5W Battery capacity: (3V/30mAh) x 2 Usage time: Up to 120 minutes in flashing mode, up to 30 minutes in constant-on mode Color: Transparent Material: Plastic Package Contents: 4 x Strobe lights (batteries and pads pre-installed) 8 x Batteries 4 x Mounting pads The package includes only the items listed above; other accessories are not included Note: Due to lighting effects and differences in display screens, the color of the item may vary slightly from the images shown. Measurement error is permitted within +/- 1-3 cm