I have used Zeftronics regulators for years. I installed the R1530B in my Bonanza and still had the problem. I called Zeftronics tech support and they helped me trouble shoot the problem. Their tech support is second to none, first class. The tech representative was very patient and great to work with. I will be putting Zeftronics regulators on all my aircraft.

Zeftronics alway good, had to modify to connector of 2003 aircraft.

Blane J Verified Purchase

Zeftronics Volt Reg R1510L

Works as expected. Quick shipment.

Mike S Verified Purchase

Zeftronics Volt Reg R1510L

5 stars

Thomas H Verified Purchase

Zeftronics Volt Reg R1510L

a good improvement on the original

John J Verified Purchase

Zeftronics Volt Reg R1510L

a good improvement on the original

John J Verified Purchase

Zeftronics Volt Reg R1510L

I swear by these voltage regulators, I have used them in several aircraft to rectify a range of electrical and comms issues, a great upgrade that should be done to replace all older regulators.

Jock F Verified Purchase

Zeftronics Volt Reg R1510L

I phone ordered a voltage regulator for a Grumman AA5A. You sent the wrong one. You don’t know it’s the wrong one until you break the seal to open the box. If you break the seal, it’s a 30% restocking charge, but you have to wait 3 o 4 months for Zeftronics to re-certify the unit before Aircraft Spruce will refund the $275. I went online & found the right one and it works.

David M Verified Purchase

Zeftronics Volt Reg R1510L

Great product and great staff at the West Chicago location.

Received next day. Easy install. Works perfectly!

Solved the alternator charging problem, great product, exceptional service.

Perfect replacement, met all expectations

Fantastic

Excellent product. No problems

it regulates

Works as advertised and at a reasonable price

works great

very nice upgrade from my old regulator

I replaced a 37-amp alternator with a new 60-amp alternator and this new voltage regulator. The new system works great. A simple upgrade with no problems.

Just what the doctor ordered.

Shipped fast (as usual) and was perfect replacement for my 76 Cherokee 235. Easy instructions. The LED is a very nice upgrade over the old Lamar unit, for troubleshooting. No settings or adjustments, either!

Replaced my 13 yr old unit that went offline. Good tech support for troubleshooting. Easy installation to get plane back up and running. A bit pricey for what it is.

Works great love the light

Easy to install and works great. Got ready of all my old delco-remy vr and ovr.

Came fast, good price and works great, cured my problem with over volting.

Perfect, plug in replacement on 1974 Cessna 150.

Great unit. Replaced same unit that had been in service since 2006. Old unit taken out by short in main lead wire. Wire replaced, new regulator installed, system back up and running. Shipped by USPS..Delivered GA to IL in 2 days!

I recently replaced my alternator and voltage regulator at the same time. I opted to go with the Zeftronics at the recommendation of other Mooney owners. I have a 1978 M20J. This VR was extremely simple to replace. The change out time took about 5 minutes. I did it myself and my A&P signed it off.

Yall have been great, reasonably priced, good shipping options. Thank you!

Great replacement for the failed same regulator that had a closed field circuit that destroyed an alternator. Hope this one lasts longer.

works fine, easy installation after old connector was fit.

This is my second Zeftronics unit. The first one only lasted 13 months (12 month warranty from install and no leeway from their tech support on the warranty) and it replaced a 38 year old factory installed unit that my A&P recommended replacing to see if it was the cause of my electrical problems (it was not). Lets hope this one lasts longer than 13 months!

I have had Zeftronics voltage regulators on 2 prior aircraft and they worked great. When I needed to replace the VR on my F33A Bonanza I went to them for a replacement. Zeftronics showed a STC qualified replacement so I ordered it. Only then did I find out that their regulator required 2 field wires while the stock unit only needed 1. That was more than my mechanic wanted to get into for what should be a simple fix. Working through this issue with the Zeftronics tech support also proved difficult as it was very difficult to get anyone to answer the phone. I am sure the regulator would have worked great once installed, but on this airplane the installation was more difficult than one would expect.

Good regulator, terrible customer service and support,they do not answer the phone,they do not return calls left on voice mail, I wonder if they will warranty their product?

This is the second time I’m getting a defective unit from the same manufacture. Overvoltage protection does not work again and almost made my Battery explode from overcharging. Unit was installed 100% correctly. I was told by a few A&Ps that this unit is finicky and NOT TO BUY IT AGAIN. I was told that the Plane Power Units are much better.

I never leave comments. But we I have ordered four or five of them in the last year. Three of them have not worked. Not worth your time and effort