1Pcs 10W High Power Led Chip Module Cob, 350Ma /Red 6-7V/Blue9-10V/Green9-10V Product Details This high power LED light is made of high quality chips inside, 999 gold wire soldering, copper bracket package, ceramic substrate base. Bring you quality assurance in the process of using. This product has three colors, can be adjusted by adjusting the brightness of the red, green and blue colors to achieve light and dark adjustment, you can adjust the brightness of the light according to the need to adapt to the needs of different scenes. Colorful lighting effects can also be achieved to increase visual appeal and artistry. COB module adopts high quality copper substrate base with power up to 10W, high brightness, small size and light weight, which can be configured and soldered according to the needs. Can be used for a variety of diy fixtures lighting, suitable for advertising signs, stage lighting, architectural lighting and other scenes. The optimal operating temperature range for this product is 40-60C (104-140F). It is recommended to equip a reasonable heat sink. When applying a layer of thermally conductive silicone grease (the thermal conductivity of thermally conductive silicone grease is ? 3.0W/mk) on the bottom of the LED substrate or on the surface of the heat sink, it should be evenly and appropriately applied, and then secured with screws. LEDGUHON is dedicated to manufacturing LED chips. We offer a wide range of wavelengths, different angles, and various models of LED chips that can be seamlessly integrated into a variety of lighting fixtures as replacement components. It is also a top choice for DIY lighting projects. Payment We accept PayPal and credit cards via PayPal. Taxes - US We collect sales tax, as required by law. Shipping We make every effort of shipping within 3 business day of payment clearing. The estimated delivery time is 2 - 5 business days from the shipping date. Policies If you do need to return your item, please contact us via email (you will receive an email when your product ships with additional details - Subject: Important information about your purchase). You will then be provided with a return shipping label and packing slip. Pack the item carefully. Include the packing slip, apply the shipping label, and return the item within 30 business days of the date you request a return, or your return will be canceled. Once we receive your order we will inspect the return. Please allow up to 5 business days of receiving the returned item for your refund.