This compact, lightweight UV cabinet will accommodate TLC plates up to 20x20 cm and any of our 4 watt or 6 watt UV lamps. Access to the interior of the cabinet is via a flexible, dark curtain on the front of the cabinet. The contoured viewing port contains a built-in contrast filter which absorbs both UV light and "blue Haze" for safe viewing without eye fatigue. This cabinet can also be packaged with a UV lamp. The standard version (Catalog # 93-06 incorporates a portable lamp containing 6 watt tubes and offers typical light intensities at the cabinet floor of 350 μW/cm2 at 365nm and 420 μW/cm2 at 254 nm. The economy version (Catalog # 93-04) uses a portable lamp containing 4 watt tubes and produces typical light intensities at the cabinet floor of 300 μW/cm2 at 365 nm and 310 μW/cm2 at 254 nm.