Features: Mainly used in hospital laboratory, biochemistry laboratory for qualitative analysis of plasma, serum, urea, and vaccine manufacture. Elaborate design, circle centrifugal head, the top transparent glass cover, effectively reduce the noise and air resistance. Control panel: timing, rotation button, clear value, easy to operate. The lower-speed centrifugal machine with the maximum speed 4000rpm/min, mainly be used for the appraisal of radioactivity immunity and separation of cell or particle. Beautiful appearance, compact and light weight, large capacity, simple operation, easy to use. Specifications: Power supply: 220V / 110V Plug: EU plug, US plug (Optional) Rated power: 25W Speed range: 0-4000 RPM Capacity: 20ml x 6 holes Centrifugal tube size: 18 x 100mm / 0.71 x 3.94in Machine diameter: 24.5cm / 9.95in Height: 23cm / 9.06in Weight: 3272g (EU plug), 3672g (US plug) Package included: 1 x Electric Centrifuge Note: Please kindly make a note if you need any adapter. Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.