Replacement Fluorescent Bulb 10W-70mm ID Older Model Semi-Square With 4 Pins Reliable Exclusive BioSpring® adjustable return spring

Exclusive BioSpring® adjustable return spring reduces tension and lessens hand fatigue

Pairs with the 3X Orbital Holder from the Jura by GRS 3X Starter Set

All major components in steel (aluminum stand)

The Fretz HMR-22 Sandstone Texturing Hammer delivers a distinctive crosshatch surface texture on soft metals including gold

Replacement Fluorescent Bulb 10W-70mm ID Older Model Semi-Square With 4 Pins Reliable Exclusive BioSpring® adjustable return springThis replacement fluorescent bulb is designed for older model OttoSetters microscopes sold prior to 2002. Featuring a semi square mount with four pins, this bulb measures 3 1 4" in diameter and is rated at 10W with a 70mm inner diameter. If your bench microscope is showing its age and the original bulb has burned out, this is the correct replacement to restore proper illumination to your workstation. Features Designed for older OttoSetters microscope