I only used it twice after purchasing it new. Tabletop. Operation confirmed. Panasonic LED Desk Light, White Finish, LED (Daylight White 5000k, Ra83) SQ-LD220-W LED Desk Stand SQ-LD220-W (White Finish) Brand: Panasonic Size: 39.0 x 30.5 (shade) cm Weight: 0.7 kg Country of Origin: China Power Supply: AC100V Power Consumption: 5W Warranty Period: 1 year Accessories: Cord 1.7m Specifications: Fluorescent lamp stand illuminance JIS: Equivalent to A-class Light Source: LED (Daylight White 5000k, Ra83), Light source life 40,000 hours (luminous flux maintenance rate 70%) Specific energy consumption efficiency: 70.0 lm/W (350 lm, 5W)