National Optical Fluorescent Microscope Bulb 800-138

Replacement 110v or 230v, 5 watt fluorescent bulb for the following National Optical models:

• 138 Series
• 139 Series
• 155 Series
• 156 Series
• 157 Series
• 415 Series
• 416 Series
• 417 Series
• 420 Series (bottom)
• 420T Series (bottom)
• 430 Series (bottom)
• 431 Series (bottom)
• 460 Series (bottom)

NOTE: This item is not returnable.