Compact and lightweight, the portable HSL150 is ideal for situations where a full-size slit lamp is not available or convenient. For the examination of the anterior segment in Human and Veterinary medicine. Slit size adjustable from 0.2 mm x 10 mm to 4 mm x 14 mm. 6 x magnification. Blue interference filter (FITC), can be selected for corneal examination. Multi-coated optics for maximum light transmission. 2.5 V or 3.5 V XHL Xenon Halogen Technology for bright, white light comparable with the brightness of a classic slit lamp. The HSL 150 instrument head weighs just 70 g, the lightest slit lamp of its kind. The HSL150 instrument head weighs just 70 g, the lightest slit lamp of its kind.