This Aijiren LC - has a Gradient Pump, Manual injector, Variable wavelength detector configuration. Specifications: Weight: 43 kg (94 lbs) Dimensions (height × width× depth): 640×370×485 mm (25.2×14.6×19.1 inches) Line frequency: 50 or 60 Hz, ± 5 % Power consumption: 240 VA / 210 W / 717 BTU