Notice:It must need a heat sink aluminum for cooling, do not light it without heat sink Aluminum. Product Description Feature: Power:10W 20W 30W Voltage:AC110V / 220V (No need power supply ) Color Rendering Index:Ra80 Color Temperature: White 6000-6500K,Warm White 2800-3200K Beam angle :180 degree Do not need power supply,contact 220V/110V AC directly,Suiteable for DIY Applications: Widely used in Traffic lighting, Landscape lighting, advertising lighting, Indoor Lighting, Special lighting,Landscape scene / spot lighting,Architectural lighting,Display scene,Artwork lighting,general lighting,Amusement park scene,Aquarium lighting and so. Package Content: (According to what you choose) 1 pcs * Led Chip Lamp The merchant warrants that their products comply with allapplicable laws, and are offered only if they comply with Joom'spolicies and EU Product Safety and Compliance laws. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.