The TLB4000's large work area combined with its built-in 20 Watt illumination make it an economical and versatile choice for the crowded lab environment. The 6 volt, 20 watt power supply is continuously variable from 3 to 6 volts. It powers a high efficiency Osram Xenophot halogen lamp with a light output of 480 lumens (39 candle power). This lamp is easily accessible in its removable lamp housing. The new high efficiency optical design has increased light intensities nearly 400%.

Further, the condensing lenses can be quickly adjusted with the control lever to match the field of view and intensity for the magnification being used. The mirror mounts in a mechanism that provides tilt, as well as front to back movement. This technique allows the microscopist's to vary the illumination from brightfield to darkfield (see example at left).

The standard flat mirror can be replaced with a curved mirror for microscopist's who prefer this type of illumination. For high magnification work, the drop-in ground glass increases the NA of the system. For low magnification work the drop-in opal glass filter ensures an even field of illumination.

Beyond this benefit, the TLB4000 has the ability to grow with you as your illumination needs change. By adding feature modules the TLB4000 can be transformed into a TLB5000 or TLB6000 stands.