Table leg ERGO OPTIMAL with 1-motor, black. Table leg ERGO OPTIMAL with 1-motor, black. Make your work environment comfortable and stay healthy! The table leg is electrically adjustable. One electric motor and a two-phase lifting system ensure fast, smooth and quiet (<50dB) motion. Simple two-button control box. Maximum lift speed 15mm per second. Input voltage: 100V-240V. The height of the table can be adjusted in the range of 71-116cm. Maximum load capacity at full speed 70kg. Recommended work surface dimensions 50-70x100-140cm..