Usage Tips:A. Product Specifications: 1. Correlated Color Temperature (CCT): 3000K - 6500K 2. Colors: Warm white/Cool white/Green 3. Optical power: 3W/5W/7W 4. Beam angle: 80 degrees 5. Lumen: 300 - 900 lumens 6. Comes with a 26 - centimeter cable by default, no power plug or grounding wire 7. Service life: Over 50,000 hoursB. Product: 1. Input voltage: 220V/110V AC or 12V DC 2. Luminance attenuation: 1% - 3% per 1000 hours 3. Luminous flux maintenance rate: Reaches 80% at 50,000 hours 4. Color rendering index: ≥80Ra 5. Power factor: ≥0.90 6. No ultraviolet or infrared radiation 7. Operating temperature: - 40°C to +60°C 8. High impact - and vibration - resistance abilityC. Features: 1. Voltage options of DC 12V and AC 85 - 264V are available. 2. Adopts COB LED technology. 3. Simple and convenient to install. 4. COB spike lights have a variety of beam angle options. 5. With an extremely long service life of over 50,000 hours.D. Advantages: 1. Environment - friendly: Mercury - free and free of other harmful substances. 2. No flicker, radio - frequency interference or buzzing sound, instant soft - start and low heat generation. 3. Widely used in offices, bars, residential rooms, hotels, commercial buildings and other places. 4. High energy - efficiency: Consumes only 20% of the electricity of halogen lamps and incandescent lamps.