With the maturity of LED lighting technology, there are a number of LED bulb lamps that replace incandescent bulbs or energy-saving lamps. In the face of various ball bulbs, how to choose?
Currently, the following national standards for LED bulb bulbs are:
1. Gb24906-2010 normal lighting with 50 V above the safety requirement of the ballast LED lamp
2. GB/t24908-2014 normal lighting with non-directional self-ballast led lamp performance requirements
3. Gb30255-2013 normal lighting use of non-directional self-ballast LED lamp energy efficiency qualification and energy efficiency level
In the above three criteria, GB24906 and GB30255 are mandatory standards, and GB/T24908 is the recommended standard. GB24906 specifies the basic safety requirements for electrical and mechanical GB30255 specifies the ball bubble lamp of minimum energy efficiency requirements and classification of energy efficiency, GB/T24908 limit the quality of ball steep light, luminous efficiency and other performance requirements.
The model of bulb lamp is made up of five parts, as shown in figure 1. The first part of BPZ is the codename of bulb lamp. The second part is the light flux specification of the lamp. The third part is the light distribution type, which has three types, complete with light (code for O), quasi-all-match light (code Q), and semi-gloss (code for S, ellipsis); The fourth part is the color feature of the lamp, with the color index code (8 is not less than 80, 9 indicates the high color index) and tonal code combination representation; The fifth part is the supplementary part, may be the lamp type or other information.
Select key indicators
1. The photosynthetic efficiency
The energy saving characteristics of the light source, the unit is lm/W, the higher the number, the better the effect of this Lantern Festival. The national standard requires at least 60lm/W, and currently many products can reach 90lm/W, and good products can reach 110lm/W.
2. Color index
To evaluate the color ability of the object, the numerical value is 0-100, and the larger the value, the closer the color of the light source to the object is to the real color. General requirements above 80, above 90 indicates that the color of the lamp is very good.
At present, the national standard requires that LED bulb lamps can live for 25,000 hours. If the lamp works 8 hours a day, it can work for nearly 8 years.
1. Look at the packaging
National standard GB24906 mandate LED ball steep light in the light the following contents: the rated voltage or voltage range, rated power, rated frequency, source tag (may take the form of trademark, name of manufacturer or distributor). The quality of the trademark of quality products is better, the logo is clear and distinguishable, and the address of the manufacturer, contact information and relevant certification mark.
2. The color temperature
At present, there are two kinds of colors, one is warm color, the other is yellow light. One is a cold color, or white light. Warm light gives a warm feeling, suitable for use in hotels, hotels and bedrooms; Cool color gives a person relaxed feeling, use in office, sitting room illume more.
3. The power
The power of LED bulb lamp is mainly 3W, 5W, 7W, 9W and 11W5 specifications, which can be chosen according to the lighting demand. According to the light effect of 90lm/W, the bulb of 5W bulb is roughly the equivalent of 40W incandescent lamp.
Look at performance metrics
Focus on light effect, color index and life. Enterprises generally on the product or the instruction given on the above several parameter values, the photosynthetic efficiency level of the lamp in 90 lm/W, some enterprises does not mark the value directly, but power and luminous flux, we use flux/power to get the numerical is roughly the photosynthetic efficiency levels for the products; The color index requires above 80; Life expectancy should be more than 25,000 hours.