10pcs High Power Led Cob Chips 3w-18w 300ma, 13mm Diode For Diy Spotlight &. Illuminate Your Space with These Versatile LED Lights, Ideal for Various Applications Including Spotlights, Down Lights, Ceiling Lights, and Panel Lights. Crafted with High-quality Bridgelux Crystal Chips, These Lights Offer Excellent Brightness and Efficiency Across Multiple Power Options Ranging from 3W to 18W. Experience Any Ambiance You Desire with Color Options in 3000k Warm White, 4000k Natural White, and 6500k Cold White, All with a Remarkable Color Rendering Index (CRI) of 90, Ensuring Vibrant and True-to-life Colors. Certified with CE Standards and Free from High-concern Chemicals, These LED Lights Are Both Safe and Reliable for Every Setting. Features: - Power Options: 3W, 5W, 7W, 10W, 12W, 15W, 18W - Voltage Requirements: - 3W: DC9-12V - 5W: DC15-18V - 7W: DC21-24V - 10W: DC30-33V - 12W: DC36-39V - 15W: DC45-48V - 18W: DC54-57V - Luminous Efficiency: 120-130 Lumens Per Watt - Lumen Output: - 3W: 360-390lm - 5W: 600-650lm - 7W: 840-910lm - 10W: 1200-1300lm - 12W: 1440-1560lm - 15W: 1800-1950lm - 18W: 2160-2340lm - Color Temperature: 3000k Warm White, 4000k Natural White, 6500k Cold White - CRI (Color Rendering Index): 90 - Certification: CE - Size: 13x13mm - Luminous Surface Size: 11mm - Current: 300mA Elevate the Lighting in Your Home or Workspace with These Exceptional LED Bulbs Designed for Efficiency and Vibrant Color Rendering..