Meccanixity 280-350Ma 1W Led Chip Bulb Cob Light Beads Pure White 10Pcs With What is This? What will I get? Are there any advantages of the product? How to use it? What should I notice? Product Features 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. Shipping: Shipping is complimentary within the lower 48 US States. We Do Not Ship to PO/APO Boxes, HI or Alaska We Do Not Ship Outside of the Continental US All items ship within 24-72 hours of Payment For large items that require Freight shipping a valid phone number is required to call and schedule your delivery Terms of Sale and Feedback: Feedback is extremely important to us and If you are satisfied with our transaction, please take a moment to leave Positive Feedback. YOUR Satisfaction is our #1 Priority! If there are any issues, PLEASE contact us BEFORE leaving a neutral or negative rating so that we may resolve any concerns. We PROMISE we can make you happy if you give us a fair chance. Returns / Concerns: All items qualify for returns within 14 - 30 days of receipt. Buyer is responsible for return shipping on any item that is not damaged Please be sure this is an item you want before making your purchase. Customer Satisfaction is our TOP priority! All items are IN STOCK at time of listing. Inventory changes constantly and it is impossible to maintain a perfectly accurate count of all items. Please do not penalize us if we have to issue you a refund! Thank You For Your Business!