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Black-Lemon Battery LED - XEL620201 A low powered LED comes securely contained within a robust tube for protection
Makes up to 4
enhance your playing with a range of authentic effects
optically clear polystyrene surfaces for distortion-free microscopic visualization of cells
52 pieces and 50 marbles
Lascells Variable Power Supply 0-15V AC/DC 39187 Black-Lemon Battery LED - XEL620201A precision variable full specification power supply for the school laboratory with unrivalled advantages in terms of design and electrical specification. See VTT12302921 for precision switched version. Up to 8A DC, switched or variable but, most importantly, constant, regulated DC voltage regardless of load. Combine this with a simple to adjust maximum voltage limiter, automatic overload protection, digital voltage readout and a compact, lightweight