Meccanixity 280-350Ma 1W Led Chip Bulb Cob Light Beads Pure White 10Pcs With Product Details What is This? What will I get? Are there any advantages of the product? How to use it? What should I notice? These LED chips are used in the replacement of LED downlight, track lights, floodlights, flashlights, stage lights. Package Content: 10Pcs x COB LED Chip Board, 20Pcs x LED Chip Beads. COB LED Chip Board is 280-350mA current, 3.2-3.4V input voltage, 1W power, 20mm/0.79inch diameter. LED Chip Bead is 300mA current, 3W power, 8mm / 0.31inch diameter. Light Color: Pure White 6000K. High brightness, energy-saving, low consumption, durable and long service life. This LED chip needs a heatsink for cooling. Apply thermal grease evenly on the bottom of the light source and the contact surface of the heatsink when installation. This LED chip is powered by constant current LED driver power supply. Do not light it without heatsink aluminum otherwise it will get damaged. 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.