Can I connect 12v led to car battery?
Answering your question: you can’t use a 12v battery to power a 12v led strip directly. a fully charged lead acid will have 13.8v which will burn out your led strip if you are doing so. You don’t need a current limited device. it will drop your 13.8v battery to 12.
Will LED lights drain a car battery?
With this power draw, even IF you leave your LED headlights on the whole night, they will not drain your battery as halogen headlights would have. Just like stock LED lights don’t drain your car battery, neither do aftermarket LEDs for projector headlights.
How long do batteries last with LED lights?
about 18-24 hours
Will a light bar switch drain my battery?
The light on the toggle switch will not drain the battery because it draws minimal current from the battery source. The light source is a Light Emitting Diode (LED) which is a very efficient light source, and requires low currents to operate. There are some instances where the light might possibly drain the battery.
Do LED light bars draw a lot of power?
The LED uses much less wattage (approximately 1/4) to produce the equivalent lumens of halogens. So a 10W LED will produce the equivalent light (lumens) as a 40W halogen. A 40W halogen will draw 3.33A (40/12) while a 10W LED will draw .
How many amps does a 50 inch LED light bar draw?
20A@12V,9A@24V LED Current Draw. 18000 Lumens to light up the night.
Do LED light bars need a relay?
A relay is an electrical switch that lets a low current circuit control a high current circuit such as a large LED light bar. If you are using a light pod that does not have a very large amp draw, you may not need a relay switch, but if you are using a larger LED light bar, they are a must have.
Why do LED light bars have a relay?
Relays can be used to switch a low-current trigger to high current, switch a circuit on or off, reverse polarity, and much more. When adding LED lights, such as off-road light bars, driving/work lights, or other auxiliary lights to a vehicle, you must add a circuit to power the light adequately.
Can you wire LED light bar without Relay?
Although relay is a vital part to wire LED, it is possible to wire one without it. In this case, a switch can be used by determining the type of LED, power supply and resistor and wiring it.
What happens if you wire a relay in backwards?
If there is an internal diode and you get the coil polarity backwards, the coil is effectively shorted by the diode every time you try to turn it on. Relays with protection diodes internally simply must be fed the correct polarity or the smoke will come out.
Can you use any relay?
The problem is, not all relays are the same. Many relays, if installed for the wrong application, could and will cause a short (Internal Relay Circuit) and most likely cause functionality issues or even damage to the vehicle computer systems.
How do you tell if a relay is bad with a multimeter?
Use a digital multimeter (DMM) to test the resistance between each pole of the relay and the corresponding NC and NO contacts for that pole. All NC contacts should read 0 ohms to the corresponding pole. All NO contacts should read infinite resistance to the corresponding pole. Energize the relay.