I know this is a long post but the moral of the story is yes you can buy a standard light fixture from your local hardware or lighting store, Amazon, Etsy, World Market, etc. and install it in your RV, just as long as you make sure your light bulb matches the voltage of the existing fixture.

Here’s how you change an RV light bulb safely:

1. Remove the RV light bulb. POWER OFF! – Make sure to turn off the power first.
2. Take other safety measures. Make sure to let the bulb cool off entirely before unscrewing it.
3. Replace the Light Bulb. Take the light bulb out of the socket.
4. Discard the old light bulb.

The most common RV light can be replaced with any 12v LED light bulb. A common RV light bulb and a LED bulb share the same standard A19 shape with a medium E26 screw base. With the measurements of the average LED light bulb, it should fit into your standard socket with the dimensions being 5 x 2.9 x 2.9 inches.

Yes you can. But it will not glow that bright because the bulb is rated 120 volts to get the desired brightness. If you’ve ever tried it, you would find that even at 50% rated voltage, the bulb will be useless.

Look to see if you have a transformer wired before the light. If you have transformer then you have a 12V light. Check the back of the light housing where the cord connects into the light, there will be a label specification of your light. The brightness of a 12V and 120V will be the same.

12-volt lights are compatible with 24-volt systems – they use electricity and can be wired into the system. Light bulbs and light strips are designed to operate at slightly lower and slightly higher voltages. The problem with adding them to a 24-volt system is the excess voltage.

You have to first convert the 12 volt DC power to 12 volt AC power, and then run the 12 volt AC through a step up transformer. Commercial power inverters and converters supply 120 volt AC power from a 12 volt DC source such as a car battery or solar panel.

Electrical systems based on 12-volt batteries can be used to supply 110-volt AC (alternating current) through the use of a voltage inverter. When coupled with a bank of batteries, voltage inverters are used in battery backups for computers and other electronic equipment.

There are a few major differences between the two, one being 120V requires and electrical license and 12V in Texas does not. Also, 120V is the power that runs through your house, where 12V is dropped down from 120V using a transformer, and is much safer to work with that 120V, especially in your yard.

What size AC device can I run? The power output of the inverter is limited to the fuse size of the car’s power outlet, or lighter socket in our case. For example, a 10 amp–fused 12-volt lighter socket will safely power about 1 amp of 120-volt AC (or about 120 watts).

Most power outlets have a 150-watt maximum.

You can directly plug 150W to 200W inverters into the car cigarette lighter. Inverters with higher wattages should be modified in circuit. Normally, the car cigarette holder outputs 12-15A current which means it can support device of 150W-200W at most.

10 amps

An automobile auxiliary power outlet (also known as car outlet, automotive power socket, automobile outlet, vehicular outlet, cigarette lighter receptacle, cigar lighter receptacle, CLR, or cigar lighter socket) in an automobile was initially designed to power an electrically heated cigarette lighter, but became a de …

If you don’t want to have the inconvenience of adding a long power cable all the way down your car into the engine bay, what you can do is connect it to the cig socket. For small car amps that are rated around 100 watts rms for a little subwoofer, 8 gauge should work just fine.