Feature: Novel appearance, simple structure and easy operation. With gold-plated copper column, it is designed to automatically light up when touching water after jumping into the water without turning on it in advance. LED bulb, energy saving, high efficiency and with long service life. The upper shell is transparent and frosted, which can look directly into the simple structure of the lamp. The shell is with high frequency welding, beautiful, firm and impermeable. Specification: Condition: Brand New Item Type: Life Jacket Light Material: Plastic Weight: Approx. 30g Battery: Lithium Battery CR14250 80mAh Package List: 1 x Life Jacket Light