Specifications: High quality, great durability and sturdy, not easy to break. It can provide a safety working condition, protects your head from hurting. With cooling fan, can give you a cool feeling in hot summer. Adjustable strap, comfortable to wear. Solar panel will supply continuous power as long as the sunshine is strong enough. Item Name: Safety Helmet Material: PE Solar Panel Power: 0.3W Applications: Site Construction, Mechanical Repair, Indoor Decoration, Warehouse Movement, etc Features: Lightweight, Safety Helmet, Protective Fan Diameter: 63mm/2.48" (Approx.) Length: 290mm/11.42" (Approx.) Width: 230mm/9.06" (Approx.) Height: 150mm/5.91" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Safety Helmet