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Precautions For Outdoor Lighting Installation

 Grounding: The lamps must have good wiring and grounding according to the requirements of the
manual, and the Class I lamps will become similar to the Class 0 lamps if they are not grounded;
Allowable voltage fluctuations: HCI ceramic metal halide lamps, HQI quartz metal halide lamps and NAV
high-pressure sodium lamps require that the voltage fluctuations within a short period of time not
exceed +/-5%, and the long-term allowable fluctuation range is +/-3%, which is more Large voltage
changes will shorten the life of the lamp and cause color shift;
  The use of light source: frequent switching will shorten the life of the lamp;

   Ballast: The distance between the light source and the ballast is restricted, generally not more
than 3 meters;
  Starting current: HCI, HQI and NAV are based on different ballasts, the lamp starting current can
be as high as twice the operating current, so this current must be considered when designing the
circuit, otherwise the switch will easily trip;
Luminous flux: The parameters of the light source are relatively stable after 100 to 300 hours. The
ignition position of the T type and TS type is horizontal, while the E type has a vertical lamp
holder. When the light source has different ignition positions, its luminous flux, color temperature
and life are all There is a significant difference;

Color deviation: For all HQI and HCI metal halide lamps, there may be color deviation between the lamp
and the lamp. This color deviation is due to the influence of external factors such as power supply
voltage, ballast and lamp design. Influencing factors of color temperature consistency:
Internal factors: The consistency of the arc tube (charged mercury, electrode gap, volume, status and
size, etc.) determines the consistency of the lamp power and cold spot temperature, which all affect
the density of the halide, which determines the relative color temperature of the lamp. consistency.
At the current advanced level abroad, the relative color temperature tolerance of the same batch of
light sources can be controlled at about +/-100K when it leaves the factory, while the domestic
advanced level is about +/-300K. For a 3000K metal halide lamp, this difference in color temperature
of 600K can be easily felt by the naked eye.
External factors: different ignition positions can differ by 600K, power supply voltage parameters,
supporting capacitors, and related industry standards, the rated power below 400W, the ballast
adjustment rate must be ≤10%; but supporting the constant power electronic town of Taitong Lighting
The flow device can well prevent the color temperature deviation.
Number of installations: It is recommended that no more than 4 lamps are connected in parallel on the
same branch to reduce voltage changes. The difference in phase-to-phase voltage will also cause the
color cast of the light source, such as customers who have special requirements for illuminance and
color rendering. , It is recommended that customers choose HCI ceramic metal halide light source,
matching constant power metal halide lamp electronic ballast, the price is more expensive;
Buried lamp installation items: first install the pre-buried outer barrel for the buried lamp. When
installing the light source, be sure to use toughened glass to tightly compress the waterproof silica
gel, tighten the screws diagonally evenly, and not install it on the driveway of the square. The
conventionally produced HID underground lights reserve a 0.5-meter three-core cable. The external
wiring must use a waterproof box. The waterproof level requires IP67. The company does not have a
waterproof box (can be ordered separately from the company), and the underground lamp must have 20CM
The above water-repellent layer, it is better to have a water-repellent groove; 10. Underwater lamp
installation matters: reserve 1 meter of three-core cable for the conventionally produced underwater
lamp, and use a waterproof box for the external wiring. The waterproof level requires IP68, and the
company leaves the factory. It is not equipped with a waterproof box (can be ordered separately from
the company). For safety reasons, underwater lights generally require a transformer. The waterproof
rating of the transformer is IP44, so the underwater lamp’s anti-shock rating is Class III. The
transformer must be installed on the shore of the pool. Installed underwater;
Flood (projection) lamp installation matters: When the flood (projection) lamp is installed with the
light source, the tempered glass is well pressed against the waterproof silica gel. The floodlight can
be adjusted according to the lighting design requirements. All flood (projection) lamps are buried in
the ground. Lamps and wall lamps cannot be covered by obstructions. This distance is indicated on the
label on the product. All lamps cannot be installed on combustible surfaces (combustible surfaces
refer to objects that can burn at 130 degrees);
  Wire number and rated current regulation: the minimum cross-sectional area of ​​the wire
  Rated current (A)  Nominal cross-sectional area (mm2)
  ≤0.2 wire wire
  >0.2 and ≤3 0.5
  >3 and ≤6 0.75
  >6 and ≤10 1
  >10 and ≤16 1.5
  >16 and ≤25 2.5
  >25 and ≤32 4
  >32 and ≤40 6
  >40 and ≤63 10
  Light source installation: HID light source and electrical appliances must be matched, and must be
well installed on the lamp holder. The light source cannot be installed with bare hands. The company’
s products are equipped with a pair of disposable film gloves in each set of lamps to install the
light source;

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