Based on the patented Ceramic Technology, SANSI 30W LED light bulb can work a long time in a relatively high-temperature environment, which means, it can be installed in a 100% enclosed luminary. More Excellen Features Multiple Usage & Wide Applications Description Super Bright & Wider Beam Angle: SANSI 300W equiv. 5000 high lumen LED bulb, at about 166 lumen/watt output, with a wider 270-degree beam angle provides an all-around light distribution, can illuminate a larger place even the darker corners, provides you with excellent lighting experience! Flicker-Free: Adopting high light transmission optical lenses, up to 168 LED chips can not only provide you and your family with the light source they need daily but also provide a healthy living or work environment. No flickering, no noise. Patented Ceramic Technology: SANSI’s patented technology replaces the traditional Mcpcb aluminum substrate with a non-conductive ceramic heat sink, directly soldering the LED chip on the ceramic heat sink, effectively reducing the system thermal resistance between the LED PN junction and the surface of the heat sink, resulting in faster heat conduction and higher product reliability, making SANSI’s bulbs perform with higher light efficiency. Wide Range of Applications: Designed in an A21 shape with a standard E26 base, these bulbs can be used in various applications where incandescent, halogen, corn, or CFL bulbs are typically used. They are suitable for home, kitchen, bathroom, garage, warehouse, mall, barn, office, school, church, and more.Durable and Reliable: Featuring SANSI’s ceramic heat dissipation technology (CHDT), these LED bulbs offer excellent heat dissipation and long-lasting performance. Rest assured with a 5-year warranty, providing you with replacement or refund in case of any quality-related issues. Delivery details We deliver to Lower 48 states, and we do not ship to FPO, APO or PO Box addresses.At present, we do not ship outside USA. We aim to dispatch all products within one working day after your full payment is made. If you need to cancel a purchase after the product has been dispatched, please note that the postage fee may not be refundable. Additional postage fees may apply for re-delivery or re-direction requests. If you change your mind about your purchase and wish to return the item after receiving it, please note that applicable freight fees will be deducted from your refund and a 15% re-stocking fee will apply. Buyers must agree with the above postage and handling terms before purchase. About SANSI Official SANSI Ebay Store Welcome to the Official SANSI eBay Store. Since our founding in 1993, we have been pioneers in technological innovation related to LED applications for commercial displays and home lighting. At SANSI, we integrate product design, production, sales, installation, and customer support to provide state-of-the-art, affordable LED technology. Our team of 500+ R&D engineers, 2000+ employees, and advanced factories have helped us expand our reach to over 40 nations on five continents, and we continue to pave the way forward for the LED industry. Our 30-year experience and cutting-edge technology allow us to offer our clients the highest quality LED products, and we are committed to providing exceptional customer service to ensure that their experience with SANSI is nothing less than outstanding. SANSI PATENT Adopt LED chip independently designed by SANSI Patent NO. CN ZL 2016 2 0883646.3 SANSI adopts patented ceramic technology and unique hollow-out structure to improve heat dissipation efficiency Chip on Ceramic means COC, SANSI’s Ceramic technology replaces the traditional Mcpcb aluminum substrate with a non-conductive ceramic heat sink, and directly solder the LED chip on the ceramic heat sink, effectively reducing the system thermal resistance between the LED PN junction and the surface of the heat sink, resulting in faster heat conduction and higher product reliability, makes the SANSI LIGHTING has higher light efficiency. Contact us Customer satisfaction is our top priority. Although we rigorously enforce high-quality standards through multiple testing phases, mistakes and defects do occasionally occur. If you need any assistance, please do not hesitate to contact us. With the exception of weekends (Saturday – Sunday) and major holidays, we answer all messages within 24 hours. If you are not completely satisfied with your purchase, please contact us directly and we will do everything in our power to resolve any issue. Please contact us before you open any cases or returns,we will do our best to help you solve the matters you met.