Engaged in the LED lighting industry for many years these basic knowledge you know how much? (three)

Voltage fluctuation allowed: HCI ceramic metal halide lamp, metal halide lamp and quartz HQI NAV high pressure sodium lamp requires voltage fluctuation in a short period of time shall not exceed +/-5%, the fluctuation range of long-term allowed +/-3%, large voltage changes will shorten the service life of the lamp and causes the color offset;

The use of light: frequent switching will shorten the life of the lamp;

Ballast: the distance between the light source and the ballast is limited, generally not more than 3 meters;

Starting current: HCI, HQI and NAV according to different ballast, lamp start current can be up to 2 times the working current, so the circuit design must consider this current, otherwise the switch is easy to trip;

Flux: the source parameters was relatively stable at 100 to 300 hours, T type and TS type ignition position is horizontal, while E is in the vertical lamp, when the source of different ignition position, the luminous flux, color temperature and longevity, there are significant differences;

Color deviation: for all HQI and HCI metal halide lamp, lamp and lamp may exist between color deviation, deviation of the color is due to the effect of power supply voltage, ballast and lamp design and other external factors, factors affecting the consistency of the lamp:

The internal consistency of the arc tube (filled with mercury, electrode gap, volume, status and size) determines the consistency of lamp power and cold temperature, these have affected the halide density, so as to determine the consistency of the lamp color temperature. At present, the advanced level of foreign countries, the same batch of light source factory related color temperature tolerance can be controlled at around +/-100K, while the domestic advanced level in +/-300K. For the 3000K halogen lamp, the difference in color temperature of 600K with the naked eye is easy to feel.

External factors: the different parameters of the ignition position is 600K, the power supply voltage, the capacitor and the related provisions of the industry standard, the rated power below 400W, ballast adjustment rate shall be less than 10%; but the electronic ballast supporting Taitong lighting and constant power, can well prevent color deviation.

Install number: one branch of parallel light suggested that no more than 4, in order to reduce the change of voltage, phase voltage will cause the light color, such as color contrast and customers have special requirements, recommends that customers use HCI ceramic metal halide light source, constant power electronic ballast for metal halogen lamp matching, the price is more expensive;

Buried lamp installation matters: first install buried lights embedded in the outer barrel, a light source is installed, must use the compact waterproof silicone toughened glass good, to tighten the screws diagonally uniform, can not be installed in the square lane, HID underground lamp conventional production reserved 0.5 meters of three core cable, the external connection to waterproof box, waterproof grade IP67, the company is not equipped with the factory waterproof box (to another company), buried lights must have a hydrophobic layer above 20CM, the best and the drainage channel;

Underwater lamp installation considerations: conventional production of underwater light reserved three core cable 1 meters, the external connection should use waterproof box, waterproof grade IP68, the company is not equipped with the factory waterproof box (to another company), for safety reasons, underwater lights generally need waterproof transformer, transformer is IP44 therefore, underwater lights, anti shock rating of class III, the transformer must be installed in the pond shore, can not be installed in the water;

Pan (CAST) light installation considerations: Pan (vote) in the installation of light source, good waterproof silicone toughened glass pressing, floodlight according to lighting design requirements to adjust the angle, all pan (CAST) lamp, underground lamp and wall lamp, not covered by the cover, the distance in the product label the specified, all lamps can not be installed on the surface of combustible material (combustible surface refers to the 130 degree burns objects);

Line number and rated current: minimum cross-sectional area of the conductor

Nominal current (A) nominal cross-sectional area (mm2)

Less than 0.2 wire conductor

More than 0.2 and less than 3 0.5

More than 3 and less than 6 0.75

More than 6 and less than 10 1

More than 10 and less than 16 1.5

More than 16 and less than 25 2.5

More than 25 and less than 32 4

More than 32 and less than 40 6

More than 40 and less than 63 10

Light source: HID light and electrical installation must match, good must be installed on the lamp holder, the installation can not hand the company's products are equipped with light source, a pair of disposable film gloves in each set of lamps, light source for installation;

Light and electrical facilities: A, no American Standard and European standard of sodium lamp metal halide lamp; B, 150W does not distinguish between American Standard and European standard, and use the same lamp electrical components; C, 250W and 400W metal halide lamp is divided into American Standard and European standard, in strict accordance with the requirements of the wiring and electric light source collocation;

The installation of waterproof joints: all waterproof joints of the lamps must be tightened waterproof joints, if necessary, in the waterproof joint into the hole position requirements on the glass or silicone rubber;

Protection level description: IPXX said dustproof waterproof, the first X is dustproof, the second said waterproof. Specific definitions in the product catalog.

Symbolic text and symbols:

Rated maximum ambient temperature: t a 0C

Hz: A: V AC: AC DC: DC power: W (Watt)

Classification according to the form of protection against electric shock: I class: no sign symbol:

GB specifications: China's national standard for lighting products are GB7000 series, corresponding to the IEC60598 series (EN60598 series). From May 1, 2003 onwards, all in electrical and electronic products sales Chinese market, the implementation of the system of compulsory certification mark China, "" name "certification marks China compulsory certification" (English name "China Compulsory Certification", English abbreviation "CCC", also referred to as the "3C" logo). 3C certification includes electromagnetic compatibility (EMC) requirements. In the lighting lamps, III lamps without 3C certification mark corresponding to the I and II classes, such as no 3C and CQC certification marks, but the electrical part of it must require the corresponding 3C certification mark to sales in the Chinese market.

3C certification marks are commonly used in four kinds: safety certification mark; safety and electromagnetic compatibility mark, fire certification mark, electromagnetic compatibility mark.