Waterproof and shatter-resistant structure This ST40 LED bulb is made of transparent and sturdy plastic, which can withstand damage caused by drops and impacts. Unlike traditional glass bulbs, these bulbs are less prone to cracking, thereby reducing the risk of generating dangerous debris. They are suitable for any environment, especially for traffic areas. Each package contains 10 bulbs. Long-lasting and energy-efficient These LED replacement bulbs can operate normally with electricity, significantly reducing electricity expenses. Compared to incandescent bulbs, they can reduce your lighting costs by over 90%. These shatter-resistant Edison bulbs are suitable for any C9/E17 intermediate base light strings and are a reliable and cost-effective choice for residential and commercial applications. Warm and pleasant lighting These bulbs emit stable light, can create a pleasant atmosphere, and help create a comfortable and pleasant space. They are suitable for enhancing the atmosphere of various places, including patios, backyards, terraces, taverns, cafes, pergolas, gardens, markets, weddings, and such as Christmas trees and other holiday decorations. Brightness adjustment control Compatible with LED dimming switches (dimming switches are not included), these bulbs can conveniently adjust the light brightness to adapt to different atmospheres or occasions. Through simple adjustment, you can create a soft lighting atmosphere for intimate gatherings or add bright light for lively activities. Real application cases Durable and energy-efficient lighting equipment needed for entertainment areas in yards or backyards. Commercial places such as cafes or taverns, aiming to create a warm customer atmosphere. Seasonal decorations and event decorations, including weddings, market activities, and holiday displays. Specification Outer diameter of glass shell: 38MM Rated power: 0.65W Product lifespan: 20,000 Lamp head model: E17 Rated voltage: 120V Product stability Quantity: 10 bulbs per package These bulbs have been carefully designed to have durability, energy efficiency, and good light quality, providing reliable performance in indoor and outdoor environments.