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 22. Product function: treat seasonal affective disorder, simulate sunlight, Eliminate the production of melanin, make the brain more awake and vigorous.