Heavy-duty, all-metal, convection-cooled 20W Model is a lowcost, high-value addition for microscopes. Long-lasting (2000- hr.) halogen bulb. Allows topographical viewing of samples that can’t be trans-illuminated.
150W Model can operate at 120% (180W). Red zone on dial indicates when bulb longevity is being sacrificed for intensity. Rheostat provides smooth intensity control.
Dual Gooseneck Light Guides let you illuminate two separate stations with high multi-dimensional clarity. Goosenecks hold their position obediently. 18"L overall. Vinyl-clad Guide fits Fiber Optic Light Source No. 137474; stainless steel Guide fits No. 137475.