Car Voltage Stabilizer, 4A 48W Heavy Duty 12v Voltage Regulator Surge Protector for Car Battery Truck Vehicle Boat RV Camper Solar System (10-36V Input, 12V Output)

I wired this in over the weekend without taking it apart first. I’m using it for suspension/rock lighting (x11 3-led modules 12v .250mA). x4 come on at door open & the rest on switch. I don’t care if it shorts out & blows my lights, they cost me $6 to replace. I wired a direct feed from an aux fuse panel that I put in that read 14.2vDC with engine idle. I grounded both leads & body to chassis & gave it a 5A fuse. The tested output is 18awg at 10’ & with x4 LEDs powered, It showed 12.20vDC at 1A at the LEDs & the same at the regulator with no load. At idle with no load, this module showed .001A for a moment then nothing. I couldn’t find it in mA or uA. I decided to leave it wired direct to observe the draw and because my 95 Chevy truck is negative pulsed interior lighting with positive ground. I made it a relay activated output & I have the rocklights activate on domelight trigger for door locking/unlocking. Note: If you do this type of lighting, keep in mind the negative trigger floats a positive voltage when not activated due to the lighting control module under the dash so keep the coil circuit dedicated to minimize load/shorting/abnormal pathways to battery through the control module. I did accidentally send my rigids through the module for a brief moment & the drain of x2 dually driving pods, sent it to 6.5A for a second with no issues. I’ve noticed no heat buildup on thermal at 1A nominal & 2.5A occasional. I do have a slightly weaker fm station that’s in stereo maybe 70% of the time. When this is running under the hood (1A continuous draw), it takes the station out of stereo & gives me enough static to not be able to hear it. Closer antennas are not effected. Later I plan to try a capacitor, choke or diode combinations to attempt to remove the interference. I’ve not put it on the scope cause again, I don’t care about outcome in this project.

I use this in conjunction of a power pack and a electric cooler. The cooler normally stops working on 60 percent of the power pack, now it reaches zero before shutting down.

Most 12 volt appliances require 12 to 12.5 volts to operate properly. This regulator will only allow 11.91 volts at the very most. Therefore things that require an actual 12 volts will not work properly and if they have a circuit board they probably will not work at all. Waste of my money. If it only puts out 11.91 volts at the very most under any circumstances then that is what it should say in the description.

It works perfectly. Every time I check the output voltage it is at 12.15 vdc, typically with 13.5 to 14 going in. The leads are so short I had to extend them. I wish the leads were a little longer but other than that, it is perfect as far as I am concerned.

I use this to provide a stable, consistent 12 volts for my security cameras. My solar panels and battery system voltage can vary from 10 to 14 volts. The regulator has been functioning perfectly.

This is a handy little device. Simple and robustly made. It took inputs from my 12V DC solar power system from 15V down to 10V. and up to 2A draw. It delivered a steady 12V down to 10.5V input then it was out of range and only then did the output voltage fall below 12V. Perfect for supplying voltage sensitive electronics such as TV's Modems etc from a solar /battery system. Recommended. Note: There is a bigger 10A version if you need to draw in excess of 5A.

Was experiencing over current to my fish finder. Now it works perfectly with no interference whatsoever.

Easy to install and tested as 12.04VDC from standard automotive battery. However, the accessory (or load) cannot be connected during initial energizing. The unit fluctuates from 1.1 to 2.2VDC if the load is connected during initial energizing. Once energized, a load can be connected and it works as advertised.

Utilisé pour sécuriser l'alimentation 12 volts d'un routeur professionnel "ZHONE" et caméras (je possède un réseau 12 volts autonome dans l'habitation (batteries et panneaux solaire)). Je conseille ce stabilisateur de tension, simple et précis, 3 ampères, c'est un peu juste mais à +/- 80% de sa capacité, le stabilisateur est tiède et je ne l'est pas monté sur un radiateur supplémentaire (prévu). Il est protégé contre les pics de tension, ampérage dépassé et température élevé. Un modèle 5 ampères serait génial.

Wollt das Gerät vor einen Maxx Fan schalten. Keine Funktion am Maxx Fan, läuft nicht. Gerät entfernt...alles OK. Deshalb wird es zurück geschickt. Vielleicht ist es defekt und ich werde noch mal eins bestellen, denn ich möchte meine Maxx Fan vor über Spannung schützen Habe dann noch mal ein Gerät bestell und eingebaut, funktioniert einwandfrei, ich bin mit dem Ergebnis sehr zufrieden!. Am Ausgang gemessen liegen 12 Volt an.

Ottimo prodotto, in uscita sempre 12,3 volt qualunque sia la tensione in ingresso; ovviamente senza superare il limite max imposto.

Came exceptionally quick. Not used it yet but appears to be good quality

Used this to keep the led lights in my ice fishing shack from flashing when the solar charger would shut off when the batteries were fully charged , But since the batteries were being discharged and charged at the same time , the lights would flash all the time . With the ICVR installed no more flashing . Will buy again if needed for other projects .