Classification and Technical Characteristics Analysis of Straight Tube Fluorescent Lamps

Qingdao ASIC design studio Huabeier microelectronics high-frequency source business unit

Key words: fluorescent tube; luminous effect; inductive ballast; electronic ballast; ignition voltage; 1 / 2 power voltage law.
Abstract: The author of this article has collected a large number of technical information on straight tube fluorescent lamps at home and abroad through search and induction. From the perspective of guiding application, a brief analysis and analysis of the classification method and technical characteristics of the straight tube type fluorescent lamp are carried out.
Straight tube fluorescent lamps are used in a wide variety of applications. The technical characteristics of the parameters are also more professional, and the classification methods are different. Due to space limitations, this article only from the perspective of guiding applications. Through the three visual characteristics, such as the size of the pipe, the color of the light, and the power, the inductive classification and brief analysis are carried out. For the industry's reference.

First, according to the size of the pipe diameter:
(1) Straight tube type fluorescent tubes are divided into: T 12 , T 10 , T 8 , T 6 , T 5 , T 4 , T 3 , etc. according to the diameter of the tube . The “T + number” combination in the specification indicates the millimeter value of the pipe diameter. Its meaning: one T = 1/8 inches, one inch is 25.4mm; the number represents the number of T. For example, T 12 = 25.4mm*1 / 8*12 = 38mm.
(2) The relationship between the diameter of the fluorescent tube and its electrical parameters:
1. Fluorescent tube, the thinner the tube diameter, the higher the light efficiency and the better the power saving effect.
2, fluorescent tube, the thinner the diameter of the tube, the higher the ignition voltage, the higher the technical requirements of the ballast.
Fluorescent lamps with a diameter greater than T 8 (including T 8 ) have a lower ignition voltage. Compared with 220 V, 50 Hz power frequency AC, it meets the ignition voltage of less than 1 / 2 power supply voltage. An inductive ballast can be used for the ignition operation.
For fluorescent tubes with a diameter less than T 8 , the ignition voltage is higher. Compared with 220 V, 50 Hz power frequency AC, it does not meet the ignition voltage of less than 1 / 2 power supply voltage. Inductive ballasts cannot be used for ignition operation. Fluorescent tubes with a diameter less than T 8 must match the electronic ballast. The electronic ballast generates an ignition high voltage and ignites the fluorescent tube. Thereafter, the electronic ballast is driven to drive the fluorescent tube to ignite.

Second, according to the color of light:
(1) Straight-tube type fluorescent tubes are divided into three colors : a fluorescent lamp with three primary colors, a fluorescent tube with a cool white daylight, and a fluorescent tube with a warm white daylight color.
(2) The relationship between the color of fluorescent tubes and their technical quality:
The phosphors coated with fluorescent tubes differ from the type of gas they are filled in, and the fluorescent tubes exhibit different light colors. The technical quality is also very different.
1. Fluorescent tube is coated with halogen phosphor and filled with argon and helium-argon mixed gas. The color of the fluorescent tube is: cool white daylight fluorescent tube, warm white daylight fluorescent tube.
u These two color fluorescent tubes have low color rendering performance and a color rendering index R value of less than 4O. Far less than the sun, the standard value of the color rendering index R=1OO. View the color of the surface of a colored object and produce a color shift. The color is greenish and grayish, and the color is dim and not bright.
u These two color fluorescent tubes have lower luminous efficiency. The luminous efficacy is generally 3 electric lumens per minute (Lm) to 4O (Lm).
u These two kinds of light-colored fluorescent tubes contain more invisible light in the spectrum, and the effective pupil dilation (effective visual light effect) is also low. The effective light efficiency is low and the effective illumination is low.
u These two kinds of light-colored fluorescent tubes, the fluorescent tube igniting igniting life is also relatively short, generally within 5OOO to 6,000 hours.
The above two kinds of fluorescent tubes of light color are not high-efficiency energy-saving electric light sources and do not meet the requirements of green lighting technology.
2, the fluorescent tube is coated with three primary color rare earth phosphors, filled with high-efficiency luminescent gas. The fluorescent tube color is a high color rendering solar color synthesized by three primary colors.
u Tri-color rare earth fluorescent fluorescent tube, the color rendering index R value is greater than 82, close to the sun color (the color rendering index of sunlight R = 100).
u Tri-color rare earth fluorescent fluorescent tube, the luminous efficiency is also relatively high, the luminous efficiency is generally 65 lumens per watt (Lm) to 1 2 O lumens (Lm).
The actual luminous efficacy of the fluorescent tube is directly related to the technical characteristics of the ballast used and the matching degree of the ballast and the fluorescent tube.
Therefore, in the actual lighting design, electronic ballasts with advanced technical performance should be selected. The fluorescent tube and ballast are optimally matched and designed.
u Tri-color rare earth fluorescent fluorescent tube, Qihui ignition life is also relatively long, generally more than 800 hours. If you match the high-performance electronic ballast with advanced technology performance, the ignition life will increase to 1500 hours - 2000 hours. Xiang Xiang <On the influence of the driving electric power frequency of the electric light source on the quality of the light source>.

Third, by power:
Because the fluorescent tube luminous power is proportional to the surface area of ​​the fluorescent tube. When the diameter of the tube is constant, the luminous power of the fluorescent tube is proportional to the length of the fluorescent tube. At this stage, the rated power and length of straight fluorescent lamps produced in China, please see the following table: (combined with the technical parameters of the same industry manufacturers).
The parameters in this table are not the technical parameters of our department. The technical parameters of our department are: Xiang Xiang <Hua Bell series three-color high-frequency high-efficiency straight tube fluorescent lamp technical parameters and substitution ratio> article.

Straight tube fluorescent lamp rated power and length

Fluorescent tubes with T10 and T 12 diameters have low light efficiency, poor color rendering performance and short life. It is basically no longer produced, so it is not listed in the above table. Fluorescent tubes with T 4 and T 3 tubes are not widely used due to their application. Due to space limitations, the technical parameters are abbreviated.

4. Scientific selection of straight tube fluorescent lamps to build an efficient, energy-saving, bright and comfortable lighting environment
Scientifically choose straight-tube fluorescent lamps to build an energy-efficient, bright and comfortable lighting environment. Whether it is applied to the home, business, office, or factory production workshop, the following principles should be grasped:
u One is to use three-color fluorescent tubes with thin tube diameter and high luminous efficiency, such as T 6 , T 5 and T 4 fluorescent lamps.
u The second is an electronic ballast with high frequency (AC continuous current-AC AC-DC-AC conversion frequency, above 40KHz), high lumen coefficient and advanced technical performance.
u Third, after selecting fluorescent tubes and ballasts, this is only the first step. Next, according to the principle of “independent optimization, best matching”, the fluorescent tube and the electronic ballast should be debugged with the best matching parameters.
Specifically, in practical applications, it is impossible for the user to manually debug the electronic ballast. The fluorescent tubes and electronic ballasts that are being sold in the market are mostly independent products that are independently produced and sold independently. There is no “independent optimization and best matching”. Such products can be combined at will, and the goal of building an energy-efficient, bright and comfortable lighting environment is not achieved.
u Fourth, the more realistic approach is to purchase a complete set of lamps. When purchasing a complete set of lamps, attention should also be paid to the technical quality of fluorescent tubes and electronic ballasts. Namely: whether the fluorescent tube is a three-primary color; the electronic ballast (AC current-AC-DC-AC) changes the frequency; whether it is above 40KHz. In particular, the technical parameters of the electronic ballast and the fluorescent tube are matched well. (This makes the user judge that it is difficult)
At present, a better method is to entrust a professional electric light source technology integrator to select a product that has undergone actual inspection and certification, technical performance selection, high quality and reliable operation; and an after-sales technical service capable manufacturer.
If you can order directly from a professional manufacturer, it will be a more reliable method.
u Fifth, Qingdao Huabeier Microelectronics High-frequency Light Source Division specializes in producing high-frequency electronic ballasts and three-color T4, T5, and T6 high-efficiency fluorescent tubes. Optional high-reflection fluorescent lamp holder. Provide lighting design, installation, testing, etc. to the community, serialized professional technical services.
Qingdao Huabeier Microelectronics High-frequency Light Source Division produces three-color high-efficiency T4, T5, and T6 straight tubular fluorescent tubes. It is entrusted to Taiwan's professional fluorescent tube manufacturer, using high-quality phosphors and electronic powder imported from Japan, and custom-made according to the specified production technology and quality standards.
Straight tubular three-color high-efficiency fluorescent lamps, specifications are: T4, T5, T6 three series, single lamp power, from l0W to 4OW.
The T4 and T5 are equipped with a dedicated pin adapter that is identical to the T 8 fluorescent tube and pin. Direct replacement for T 8 fluorescent tubes, no need to replace the original lamp holder.
Qingdao Huabeier Microelectronics High-frequency Light Source Division produces high-frequency electronic ballasts, AC-DC-AC (AC-DC-AC) conversion frequency up to 45KHz-55KHz. The driving electric power is sufficient, the lumen coefficient is high, and there is no stroboscopic effect hazard. The voltage is in the range of 18OV-26OV, the input and output power has fuzzy adaptive control characteristics, the failure rate is less than 3%, and the service life is up to 20,000 hours. See the article "Technical characteristics and accelerated life aging test report of energy-saving lamps".
Qingdao Huabeier Microelectronics High-frequency Light Source Division provides a complete set of three-color high-efficiency straight tubular fluorescent tubes and high-frequency electronic ballasts. All have undergone strict independent optimization and best matching parameter debugging, high luminous efficiency, stable operation and long service life. Can be directly replaced, T 8 straight tube fluorescent lamp.
Direct replacement for T 8 straight tube fluorescent lamps with a power replacement ratio of 3.5 W and a power saving rate of 70%.
The whole lamp is ignited and ignited: market version, 10,000 hours; engineering version, 20000 hours; technology version, 25,000 hours.

V. Conclusion
Use straight tube fluorescent lamps to create a bright, comfortable green lighting environment. Must: Guided by the system principle, strictly follow the principle of “independent optimization, best match”.
(1) Select T 6 , T 5 , T 4 thin tube diameter, three primary color high light efficiency, high color rendering performance fluorescent tube.
(2) Select electronic ballasts with high frequency and high lumen coefficient and advanced technical performance.
(3) The fluorescent lamp and the electronic ballast shall be matched and debugged with technical parameters.

Han Yurong Tel: 1360 630 6833 0532 8760 630

Coupletech Co., Ltd could manufacture and supply a variety of nolinear Optical Crystal ( NLO crysal ), which is Lithium Triborate (LBO) crystal, Potassium Titanyl Phosphatecrystal  ( KTP ) crystal, KTA crystal, Beta Barium Borate  ( BBO) crystal, BIBO crystal, Lithium niobate ( LiNbO3, LN ) crystal, Potassium Dihydrogen Phosphate & Potassium Dideuterium Phosphate (DKDP (KD*P) and KDP ) crystal, periodically poled crystal ( MgO: PPLN, PPLN ) crystal and infrared Nonlinear Optical Crystals ( AgGaS₂, ZnGeP₂ ) crystal with top quality, unbeatable prices, prompt delivery and the best pre- and post- sales technical support and services, for not only science users but commercial customers and industrial manufacturers all over the world.

Coupletech's NLO crystal is widely used for frequency doubling ( SHG ), third-harmonic generation ( THG ), sum frequency (SFG), optical difference frequency ( DFG ), optical parametric oscillator ( OPO ), and so on.

Nonlinear Optical Crystal

Nonlinear Optical Crystals,KTP Crystals,BBO Crystals,LBO Crystals,BIBO Crystals,KTA Crystals,LN Crystals,PPLN Crystals

Coupletech Co., Ltd. , http://www.coupletech.com