Bulb, 10 watt, 12 volt tungsten

This is a festoon style tungsten bulb rated for 10 watts at 12 volts.

It is the correct replacement bulb for the following microscope models:

• 30x Stereo Microscope
• National Optical 20/40x microscopes
• 10-watt tungsten top and bottom bulbs on most stereo microscopes

This bulb is compatible with the Home Science Tools 20/40x and 10/30x stereo microscope models with tungsten lighting. If your HST 20/40x or 10/30x microscope does not use tungsten lighting, order the halogen bulb as a replacement.

Note: If you're unsure which replacement bulb to buy, take out your current microscope bulb and match it to the photos on our website.