March 2019:

In future DRL will be concentrating on sales and support of the DVR2 regulators, generally suited to motorcycle use. We intend to continue sales and support of our well proven DVR3 and DVR4 products for six months or more, in order not to let down our customers with a bump.

Read more about the change in this post on our dynamoregulators.co.uk 'blog' site.


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Browse our Regulators View our range of Voltage Regulators

Dynamo Regulators Ltd . .

. . specialises in the design, production & sales of the world's widest range of electronic dynamo voltage regulators. Products include the DVR2 regulator which is primarily for classic motorcycle fitment, and the DVR3 & 4 regulators which suit a broad range of dynamo equipped cars, and incorporates current limit protection.


Dependable regulators to suit most types of classic vehicle dynamos, 8 Amps to 22 Amp output. With affordable pricing and rapid dispatch.

Check for suitability . .

DVR regulators

Read through the information on these web pages and data-sheets & order from the pre-eminent Dynamo Regulator experts.

Latest News . .

Read the News page here to keep up with latest changes and plans for DRL


April 2019: Smart Cut-Out available again


November 2018: We have added instructions via FAQ page for testing the regulation of a DVR2 (for the electrically experienced)


Please Note: DRL is not open for business on Wednesdays. Messages and website orders will be processed promptly the Thursday following.