12-Volt vs. 24-Volt LED Strip Lights: What’s the Distinction?

When choosing an LED strip gentle there are lots of components to contemplate, equivalent to brightness, colour, weatherproofing, and extra. However what about voltage? Nearly all of strips can be found in both 12V or 24V. So what’s the distinction between these two choices? Is one voltage higher than one other? What are some great benefits of every?

The straightforward reply is that it comes all the way down to your venture. Every voltage is best suited to particular purposes, and is just appropriate with strips and equipment which are the identical voltage. These components may be simply used to information your choices.

24 VDC is much less prone to voltage drop, which means that it may illuminate a strip extra constantly over a higher distance. In case you want an extended line of sunshine from one energy supply, 24 VDC is a good alternative. Whereas a better voltage doesn’t inherently imply a brighter gentle, 24 VDC can also be capable of maintain greater densities of LED chips.

However, 12 VDC is a typical voltage, so strip compatibility might remove the necessity for added energy provides. If you’re putting in lights in a car, for instance, a 12 VDC strip gentle can typically be immediately linked to the present electrical system. Whereas there are definitely exceptions to this, and it is very important examine your present system earlier than making a purchase order, 12V strips can supply a extra handy set up answer in lots of circumstances.

All LED strips, whether or not 12V or 24V, supply distinctive effectivity and brightness inside a low profile. In case you nonetheless have questions, learn beneath for extra technical data. Study the essential parts that make strip lights work and the way voltage might have an effect on efficiency.

Exploring LED Strip Voltage

What Is Voltage Drop?


Voltage drop is likely one of the most essential components when planning an LED strip system. As a circuit will get longer, the resistance of the wiring and parts causes the voltage to slowly get decrease because it strikes additional away from the facility supply. This implies by the top of a run, the voltage can be measurably decrease than at the beginning. The impact of that is most simply seen on LED strips if they’re put in past their specified max run size—the place extreme voltage drop causes the top of the strip to be drastically dimmed compared to the start.

Whereas there are a number of components that play into voltage drop, strip density and voltage are the variables with probably the most direct impression. Strip density is a measure of how unfold out the LEDs are on the strip. This performs into the utmost run of a strip because the extra dense the position of the LEDs is, the shorter the max run can be (assuming all different issues are equal). Voltage additionally immediately impacts the max run of an LED strip. On the identical wattage and density, a better voltage strip could have a decrease present draw. The decrease present draw permits greater voltage strips to have an extended max run versus comparable decrease voltage strips because the decrease present and better voltage immediately interprets to much less voltage drop. Increased voltage strips may also permit for
a better density at an identical max run in comparison with a decrease voltage strip for a similar purpose.

What Is Max Run?

Max (most) run is a specification meant to point out the utmost steady size of an LED strip from a single energy supply and connection. The restrict just isn’t associated to the utmost electrical energy of the circuit, however as a substitute is set by establishing a suitable quantity of voltage drop. Whereas density and voltage are the primary components of max run, further energy suppliers or amplifiers mounted mid run can drastically enhance the run size. It’s because additional energy inputs unfold throughout the run assist to lower voltage drop.
The diagrams beneath present strategies of attaining longer runs as soon as Max Run is reached

How Does Voltage Have an effect on Strips and What Are the Variations?

When searching for LED strips, the questions “Which is best, 12-volt or 24-volt?” and “What are some great benefits of a better voltage strip?” typically come up. The solutions are concurrently easy and complicated—it will depend on the applying. Primarily, the primary components that come into play are compatibility/location and the dimensions/size of the venture.

Whereas some parts work on a spread of voltages, most (together with strips) require a selected enter voltage to perform correctly. Look at the place the strip is being put in—trying on the sources already accessible can supply useful data. If there’s already an present 12 VDC energy supply equivalent to in a automobile, boat, or RV, then 12 VDC strips could be a sensible choice as they provide the flexibility to be powered with out a further energy provide or transformer. In the identical regard, if the set up is meant to be a part of a panorama or exterior lighting system, there might already be 12 VAC energy accessible, so 12 VAC strips could be a neater set up.

Whether or not putting in in an identical location to these listed above or not, a better voltage strip (e.g. 24 VDC) and a appropriate energy provide or transformer will make the set up simpler if the venture covers a big space because of the longer max run.

What Are Some Widespread Misunderstandings About Strip Voltage?

There are a number of concepts about how LED strips work that may simply be taken out of context or misunderstood.

One well-liked false impression is that greater voltage strips are brighter or supply greater lumen values (lumen being a measurement of the seen gentle a strip emits). This may be true within the sense that greater voltage strips might supply greater densities, longer max runs, and better wattage choices. If all else is identical —each greater and decrease voltage strips will produce the identical quantity of sunshine or lumen.

One other generally misunderstood matter is expounded to chop factors (or phase size) of strips and the way they’re decided. To know this absolutely, a primary understanding of how the LED strip is constructed is critical. LED strips are amazingly versatile partly as a result of the truth that they are often lower to nearly any desired size. It’s because LED strips have lower factors, that are predefined places the place a strip may be lower with out damaging the strip’s electrical circuit. These lower factors exist on the finish / starting of every LED circuit on the strip, which is actually not directly tied to the voltage and density of the LED strip.

Taking a look at a median LED strip (this may differ on specialty strips, equivalent to COB strips), every LED chip itself is often three V. When setting up the strip, particular person LEDs are run collectively in sequence to create a phase, with many segments tied collectively to create the entire strip. When these concepts are mixed, it signifies that a 12 VDC strip has three LEDs per phase whereas a 24 VDC strip has 6 or 7 LEDs per phase. For the top person, because of this a comparable decrease voltage strip could have a shorter phase size versus its greater voltage counterpart.

Strips with shorter segments may be lower to extra exact lengths than strips with longer segments

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