HS Code | Official Doc | Tariff Rate | Origin | Destination | Effective Date |
---|---|---|---|---|---|
8310000000 | Doc | 55.0% | CN | US | 2025-05-12 |
9405416000 | Doc | 61.0% | CN | US | 2025-05-12 |
9405418440 | Doc | 58.9% | CN | US | 2025-05-12 |
8512202080 | Doc | 55.0% | CN | US | 2025-05-12 |
8512202040 | Doc | 55.0% | CN | US | 2025-05-12 |
8539490040 | Doc | 57.4% | CN | US | 2025-05-12 |
8539293060 | Doc | 37.5% | CN | US | 2025-05-12 |
9006610060 | Doc | 37.5% | CN | US | 2025-05-12 |
8516909000 | Doc | 58.9% | CN | US | 2025-05-12 |
8545110010 | Doc | 55.0% | CN | US | 2025-05-12 |
8545110050 | Doc | 55.0% | CN | US | 2025-05-12 |
9019104000 | Doc | 30.0% | CN | US | 2025-05-12 |
9019106000 | Doc | 30.0% | CN | US | 2025-05-12 |
9031808085 | Doc | 30.0% | CN | US | 2025-05-12 |
9031808070 | Doc | 30.0% | CN | US | 2025-05-12 |




Light Therapy Lamp
A light therapy lamp, also known as a SAD lamp (Seasonal Affective Disorder lamp), is a device used to treat Seasonal Affective Disorder and other conditions by exposing a person to bright light.
Material
Typically constructed with:
- Housing: Often made of plastic, sometimes metal for durability.
- Light Source: Originally fluorescent tubes, now predominantly LEDs due to energy efficiency, longevity, and lack of UV emission. LEDs are chosen for specific wavelengths.
- Diffuser: A panel to spread the light evenly and reduce glare. Usually made of acrylic or polycarbonate.
- Electronics: Internal circuitry for power regulation and, in some models, timer functions and adjustable settings.
- Stand/Base: Plastic or metal for stability and positioning.
Purpose
The primary purpose is to alleviate symptoms associated with:
- Seasonal Affective Disorder (SAD): A type of depression related to changes in seasons, typically occurring in the fall and winter due to reduced sunlight.
- Non-Seasonal Depression: Can be used as an adjunct treatment for major depressive disorder.
- Sleep Disorders: Helps regulate the body's circadian rhythm, useful for shift work sleep disorder and delayed sleep phase syndrome.
- Jet Lag: Assists in resetting the body clock after travel across time zones.
- Low Energy Levels: Some individuals use them to combat fatigue and improve alertness.
Function
Light therapy lamps function by mimicking outdoor light. The bright light exposure is believed to:
- Suppress Melatonin Production: Melatonin, a hormone regulating sleep, is produced in higher amounts in darkness. Light exposure reduces melatonin levels, promoting wakefulness.
- Influence Serotonin Levels: Light may increase serotonin levels, a neurotransmitter associated with mood regulation.
- Regulate Circadian Rhythm: Exposure at specific times can help synchronize the body's internal clock.
- Impact Brain Activity: Light exposure affects brain regions involved in mood and sleep.
Usage Scenarios
- Home: Most commonly used in the morning, typically for 20-30 minutes.
- Office: Some individuals use them at work to combat low energy and improve focus.
- Travel: Portable models can be used during travel to manage jet lag.
- Therapy Settings: Used in clinical settings under the guidance of healthcare professionals.
Common Types
- Desktop Lamps: The most common type, designed to sit on a desk or table.
- Wall-Mounted Lamps: Useful for space saving and consistent positioning.
- Light Boxes: Larger panels that provide broader light coverage.
- Visors/Glasses: Worn like glasses, delivering light directly to the eyes (less common, require specific wavelengths).
- Dawn Simulators: Gradually increase light intensity over a period of time, mimicking sunrise (often used as alarm clocks).
Specifications to Consider
- Light Intensity: Measured in Lux. 10,000 Lux is a common recommendation for treating SAD.
- Wavelength: Full-spectrum white light is generally recommended, with a focus on blue wavelengths (400-500 nm).
- UV Emission: Should emit minimal to no UV radiation.
- Size & Portability: Consider the intended usage scenario.
- Timer Function: Allows for controlled exposure duration.
- Adjustable Settings: Some models offer adjustable intensity and color temperature.
The declared goods, a “sad light therapy lamp,” is a device designed to address Seasonal Affective Disorder (SAD) and potentially other conditions through exposure to specific wavelengths of light, likely ultraviolet. It functions as a therapeutic light source, intended for medical or wellness applications.
Based on the provided reference material, the following HS codes are relevant:
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8539490040: This HS code covers “Ultraviolet or infrared lamps; arc lamps: Other Ultraviolet lamps.” Given that a “sad light therapy lamp” utilizes ultraviolet lamps for therapy, this is a highly relevant classification.
- 85: Electrical machinery and equipment and parts thereof.
- 39: Electrical filament or discharge lamps, including sealed beam lamp units and ultraviolet or infrared lamps; arc lamps; light-emitting diode (LED) light sources; parts thereof.
- 49: Ultraviolet or infrared lamps; arc lamps.
- 00: Other.
- 40: Other Ultraviolet lamps.
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9019104000: This HS code covers “Mechano-therapy appliances; massage apparatus; psychological aptitude-testing apparatus; ozone therapy, oxygen therapy, aerosol therapy, artificial respiration or other therapeutic respiration apparatus; parts and accessories thereof: Mechano-therapy appliances; massage apparatus; psychological aptitude-testing apparatus; parts and accessories thereof: Other: Electrically operated apparatus and parts thereof.” If the lamp is marketed as a therapeutic device beyond simple light emission (e.g., mood enhancement, psychological benefit), this code may be applicable.
- 90: Instruments and apparatus which measure or check for physical or chemical analysis; measuring or checking instruments; precision balancing instruments; weights of precise measurement; optical, photographic, cinematographic, measuring, checking, precision, medical or surgical instruments and apparatus; parts and accessories thereof.
- 19: Mechano-therapy appliances; massage apparatus; psychological aptitude-testing apparatus; ozone therapy, oxygen therapy, aerosol therapy, artificial respiration or other therapeutic respiration apparatus; parts and accessories thereof.
- 10: Mechano-therapy appliances; massage apparatus; psychological aptitude-testing apparatus; parts and accessories thereof.
- 40: Other: Electrically operated apparatus and parts thereof.
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9031808085: This HS code covers “Measuring or checking instruments, appliances and machines, not specified or included elsewhere in this chapter; profile projectors; parts and accessories thereof: Other instruments, appliances and machines: Other Other.” If the lamp includes features for measuring light intensity, duration, or other parameters related to therapy effectiveness, this code could be considered.
- 90: Instruments and apparatus which measure or check for physical or chemical analysis; measuring or checking instruments; precision balancing instruments; weights of precise measurement; optical, photographic, cinematographic, measuring, checking, precision, medical or surgical instruments and apparatus; parts and accessories thereof.
- 31: Measuring or checking instruments, appliances and machines, not specified or included elsewhere in this chapter; profile projectors; parts and accessories thereof.
- 80: Other instruments, appliances and machines.
- 80: Other.
- 85: Other Other.
Regarding HS code 8539490040, please note the need to verify that the lamp utilizes ultraviolet lamps.
Customer Reviews
I found the breakdown of the function of light therapy lamps really helpful. It clarified why certain HS codes like 8539490040 are relevant for therapeutic use.
The section on material details helped me understand why some HS codes are more appropriate for LED-based SAD lamps. Very informative.
The list of HS codes is good, but I wish there was a brief explanation of what each code means for a SAD lamp. It took me a while to figure out which one applied.
I was looking for HS codes related to light therapy and found 9031808085 interesting. It might be useful if my lamp has measuring features for therapy sessions.
The details on the light source being LED were helpful. I now know that the HS code 8539490040 is relevant if my lamp uses ultraviolet light.