While selecting a LED bulb, you may feel confused about the different symbols on the bulb and hope to know what they all stand for. Now I will tell you what those common symbols stand for. Except for the brand logo of the company or agent and item No of the products, the common symbols include the types of LED bulb, the diameter of the tube and the color temperature.
Symbols for LED bulb types.
YZ: stands for common straight fluorescent light (‘Y’ is the first letter of Chinese spelling ‘yingguangdeng’ while ‘Z’ is the first letter of Chinese speling ‘zhi’.)
YK: stands for rapid set-up fluorescent light. (‘K’ stands for ‘kuisu qidong’ in Chinese, which means rapid in English)
YS: stands for instant set-up fluorescent light. (‘S’ stands for ‘shunshi qidong’ in Chinese, which is equal to ‘instant’ in English)
YG: stands for high frequency florescent light. (‘G’ stands for ‘gaopin’ in Chinese and high frequency in English)
YDN: stands for single-end inside set-up fluorescent light. (‘DN’ means ‘danduan nei’ in Chinese and ‘single-end inside’ in English)
YDW: stands for single-end outside fluorescent light. (‘DW’ means ‘danduan wai’ in Chinese and ‘single-end outside’ in English)
YH: stands for circular fluorescent light. ‘H’ means ‘huanxing’ in Chinese and ‘circular’ in English)
YPZ: stands for self-ballasted lamps for general lighting service-performance fluorescent light. (‘p’ means ‘putong zhaoming yong’ in Chinese and ‘general lighting service-performance’ in English and ‘Z’ means ‘zizhenliu’ in Chinese and self-ballast’ in English)
D: stands for inductance self-ballast fluorescent light. (‘D’ means ‘dianganshi’ in Chinese and ‘inductance’ in English)
However, some symbols of foreign LED tube are different. According to IEC (International Electrotechnical Commission), PS stands for preheat starting; RS stands for rapid starting and S stands for ‘hot cathode single pin instant starting’.
Symbols for the diameter of glass tube.
The diameter of LED bulb’s glass tube is expressed by TX. ‘T’ stands for ‘tubular glass tube’ and ‘X’ stands for ‘the diameter of the tube’, that is X/8 inch. For example, T12 means 12/8 inch the diameter of glass tube. At present, the diameter of glass tube can be expressed by metric size in the item No. of the product in China.
Symbols for color temperature.
RR: stands for daylight color. The later ‘R’ means ‘riguang’ in Chinese (color temperature: 6500K).
RZ: stands for Neutral white color. ‘Z’ stands for ‘zhongxing’ in Chinese (color temperature: 5000K).
RL: stands for cold color. ‘L’ stands for ‘lengbai’ in Chinese (color temperature: 4000K).
RB: stands for white color. ‘B’ means ‘baise’ in Chinese (color temperature: 3500K).
RN: stands for warm white color. ‘N’ means ‘nuanbai’ in Chinese (color temperature: 3000K).
RD: stands for incandescent lamp color. ‘D’ means ‘dengse’ in Chinese (color temperature: 2700K).
Besides, there are other technique parameters on the LED tube such as the rated voltage and power, etc.
For more information, you are welcome to scan the website http://www.e-cantonfair.com/products/xyt88w352801-light-source-449278.html?src=009. Furthermore, you can choose the products or suppliers in the platform.