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From: peter@easthope.ca
Newsgroups: sci.electronics.repair
Subject: Voltage halver.
Date: 03 Apr 2024 12:07:10 -0700
Organization: A noiseless patient Spider
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A variable power adapter is required to drive a 6 V, 30 W incandescent 
bulb in a microscope.

Similar to the 3-12 V 5 A adapter here.
https://www.ebay.ca/itm/305207182573
An adapter providing 1.5-6 V output would be better but I haven't 
found one.

Rather than limit the adjustment to 6 V, I think of halving the 
output.  An integrated circuit in a 4 port package is conceivable.
https://www.youtube.com/watch?v=VJfqBQ2ybpk

Does the marketplace offer a solution?
Another idea?

Thanks,                  ... P.