7 Important Issues to Consider When Buying LED Lights
Published: February 26, 2018 Source: Guzhen Lighting News Share: 
When choosing an LED bulb for your home or office, it's essential to understand your needs and select the right light and color. But what should you look out for when purchasing LED bulbs? Are you looking to save energy while still enjoying good lighting? Here are some key factors to consider when buying LED lights.
Low wattage, high lumens
One of the first things to think about is how to save electricity and reduce your power bill. A higher lumen output means a brighter light. Compared to traditional incandescent bulbs, LED bulbs produce more light with less energy. So, look for a low-wattage, high-lumen LED bulb—it’s not only efficient but also cost-effective in the long run.
Lifespan
The second thing to consider is the lifespan of the LED bulb. Most LED bulbs can last between 25,000 to 50,000 hours—equivalent to several years if used for three hours daily. However, once installed into a fixture, the life of other components like the power chip or capacitors may affect the overall lifespan. Not all LED manufacturers guarantee quality, so it's important to choose a reliable brand.
Color and Color Rendering Index (CRI)
LED lights offer a wide range of colors, from warm whites to cool blues. The color temperature, measured in Kelvin (K), determines the light’s appearance. Lower temperatures (around 2700K) give a warm, cozy glow, while higher temperatures (5000K–6500K) mimic natural daylight. Additionally, the Color Rendering Index (CRI) measures how accurately a light source reveals the colors of objects. A higher CRI means better color accuracy and a more natural appearance.
Beam Angle
LED bulbs emit light in a specific direction, which is known as the beam angle. Common angles include 15°, 30°, 45°, 60°, and 100°. A narrow beam angle (less than 30°) is ideal for spotlights or focused lighting, while wider angles are better for general illumination. For example, a 30–45° angle works well for downlights in high ceilings, while a 60–100° angle is better for lower ceilings.
Correct Luminaire
LED bulbs are slightly heavier than traditional ones, so make sure your existing fixtures can support them. Also, avoid using LED bulbs in fixtures that don’t allow proper heat dissipation, as this can shorten their lifespan. If you plan to use LEDs outdoors, ensure they are weatherproof or suitable for wet environments.
Certified Product
It’s crucial to choose LED bulbs that meet safety standards. Products certified by programs like Energy Star often provide better performance, efficiency, and reliability. In China, products under the CCC certification cover various types of LED lighting, including fixed, movable, and embedded lamps.
Warranty Period
Since LED bulbs are more expensive than traditional ones, it’s wise to choose a brand that offers a solid warranty. A good LED bulb should come with at least a 3–5 year warranty, giving you peace of mind and ensuring long-term value.
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