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Lighting of underground garages requires a combination of energy efficiency, useful life, brightness, safety and maintenance costs. The following are common types of underground garage lamps and their characteristics for reference:
1. Led lamps (preferred recommendations)
Advantages:
Energy efficiency: energy consumption is only 30 ~50 per cent of conventional lamps and long-term electricity usage costs are low。
Long lifespan: life expectancy can range from 50,000 to 100,000 hours, reducing replacement frequency and maintenance costs。
Brightness is high and even: light is flashless, colourful (ra>80), clearly identifying vehicles and pedestrians。
Flexible installation: support multiple modes of embedding, suspension, support, etc., and fit different garage layers。
Smart control: can be combined with human sensors, light-sensitive sensors or smart luminescence systems to further energy efficiency。
The color temperature is recommended: 4,000 k~5,000 k (neutral white light), avoiding cold (over 6,000 k) or overheating (under 3,000 k)。
Application of scenes: main lighting of most of the garages。
2. Fluorescent lamps (phased out)
Advantages: low initial procurement costs and more even light。
Disadvantages:
High energy consumption: led lamps are about 50% higher than electricity consumption。
Fractional problems: may cause visual fatigue and safety risks。
Short life span: approximately 10,000 hours with frequent replacement of lamps。
Applicable scenario: temporary garage with very low budget and no long-term need。
3. Gold halogen lamps/high pressure sodium lamps
Advantages: very bright and suitable for hyperspace。
Disadvantages:
High energy consumption: far above led lamps and high long-term cost。
Slow start: maximum brightness in minutes is not suitable for frequent switch scenes。
Visibility differential: high pressure sodium light is yellow (colour index ra)
Apply scenario: old garages equipped with such lamps are overused prior to conversion。
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4. Smart sensor lamps
Technical principles: combining led lamps with microwave/infrared sensors achieves “deep or shut down when a human car arrives”。
Advantages: further energy conservation (30% ~ 60% electricity saving) and extension of lamp life。
Areas of application: non-continuous lighting areas such as drive lanes, spaces, entrances, etc。
5. Emergency lighting
Impact: as part of the fire emergency lighting system, provide evacuation guidance in case of power cuts。
Requirements: national fire safety standards need to be complied with, independent circuits powered and regularly maintained。
Installation proposal
Standards of light: ground-level irradiation generally requires 100 to 200 lex (lux), with lane areas slightly above parking space。
Layout:
Flatten the lights: ensure no dark areas and avoid dazzling。
Partition control: area according to frequency of use, time-time or partition control lighting。
Height fit:
3 m high: embedded led tablet or lamp。
Level > 3 m: led or ceiling lamps。
Summary of recommended options
Main lighting: high-light led lamps (e. G. Led miners, tablet lamps) + smart sensor control。
Auxiliary lighting: roadway instruction led lamps, wall foot safety lights。
Emergency response system: independent fire emergency lighting。
Through rational design, underground garages can achieve energy efficiency and reduce long-term operating costs with security guarantees。
