Item Type: Solar Warning Light Material: PC, ABS Solar Panel: 5.5V 90mA Battery: Lithium battery x 1 (with built in battery) Capacity: 1800mAh (single battery capacity) Flashing Frequency: About 55 times per minute Light Color: Alternating red and blue Duration: 5 to 7 nights Use: Road engineering, traffic warning, high rise buildings, ships, bridges, iron towers, oceans and other fields to effectively reduce accidents and ensure safety. Package List 1 x Solar Warning Light 16 LED Beads: With 6 high brightness LED lamp beads, this light can provide you with a long life span and stable performance. 2High Conversion Rate: Equipped with 90MA polysilicon solar panel, this light can be charged quickly with high power. 3Waterproof Performance: This warning light features a waterproof performance that you can rest assured to use it outdoors. 4Easy Using: No wiring required, no battery change, this solar warning light is convenient and easy to use 5Wide Application: This warning light is widely used in road administration engineering, traffic warning, ships, oceans and other fields to effectively reduce accidents and ensure safety. 6Portable: Comes with a small size and lightweight as well, you can easily take this light with you to help with your work.