Specification: 1. Product model: JSK-22 2. Product certificate: CE/FCC/ROHS CE medical, British European certification, etc. 3. Material: shell (ABS) + optical polar light guide film + LED light 4. Power supply mode: C Type cable 5. Voltage: 5V 6. Power: 10.3W 7. Color temperature: 3000K-4700K-6500K 8. Adjustment method: stepless dimming 9. Light intensity: 2000~10000LUX 10. Color: yellow/warm yellow/white 12 Product size: 160*140*10mm 13. Work area: 120*115mm 14. Product net weight: 350G 15. Packing gross weight: 450G 16. Packing: 40 sets/carton 17. Net weight: 17KG 18. Gross weight: 18KG 19. Color Box size: 180*160*50mm 20. Outer box size: 500*335*375mm 21. Packing list: phototherapy lamp*1/bracket*1/instruction*1 Features: Customized for people who lack energy to help relieve symptoms of depression and fatigue. Regulate circadian rhythm and improve sleep quality. Use it 30 to 60 minutes a day to help boost mood, increase concentration and restore energy. Light therapy can be used to prevent winter depression and eliminate bad mood. Treat seasonal affective disorder, simulate sunlight, Eliminate the production of melanin, make the brain more awake and vigorous. Package includes: Phototherapy Lamp*1