” To work out what transformer you require this is quite simple. You take the amount of LED tape you have in metres and x this by the wattage of the LED tape you have, again per metre. For example 7m of 4.8w LED tape: 7 x 4.8w = 33.6w Therefore you would require a 60w transformer. ”

What size transformer do I need for LED strip lights?

Take the length of your LED strip in feet and multiply it by the watts consumed per foot, then multiply by 1.2. This will give you the minimum sized power supply you’ll need to run your strips.

How do I choose a LED strip transformer?





To decide how much power your LED strip driver needs, multiply the length of LED tape you have (in metres) by the wattage per metre. For example… This means you will need an LED transformer that can supply 35 watts (at least).

Which transformer is used for LED strip lights?

The LED strip installation we have has a total wattage of 144 W, to which we have to add a safety margin of 20-25%. So we will have to multiply this power by 1.2. Therefore, a transformer that can be used for this type of installation is a 200 W transformer with 12 V.

Can I use 12V transformer for 24V LED strip?

Going the other way – 24V LED strips on a 12V power supply



If you’re trying to go the other way and connect a 12V power supply to operate 24V LED strips, unfortunately, you are out of luck. You’ll need to purchase a transformer or voltage booster, or, more straightforwardly, a 24V power supply.

How many watts is a 5m LED strip?

In electrical terms, we now know that at 12V, this LED strip will draw about 24 Watts per reel (5 meters), or about 2.0 Amps.

How do you calculate amps for LED strip lights?





To determine how many amps your strips are drawing, you’ll need to find their wattage, so let’s use a really easy example. A regular density 3528 LED light strip draws twenty-four watts, now take the wattage and divide it by twelve, that’s your amp draw, or two amps.

Do I need a special transformer for LED lights?

All mains powered LED bulbs require a transformer. Depending on the bulb type, the transformer/driver may be built in to the bulb casing or may be located externally. The purpose of the transformer is to reduce mains voltage (240V) to the desired level relative to the bulb being powered (e.g. 12V or 24V).

Do I need a transformer for LED strip lights?

Firstly, it’s important to note that LED strip lighting needs LED transformers if you’re wiring them to your mains because they have a significantly lower (12V) voltage. The transformer you need depends on multiple factors, such as; length of strip, watts per chip and total wattage.

How do I calculate LED driver wattage?

An easy way to calculate this is to multiply the total wattage of your lighting by 1.2. For example, if you have five LED path lights that consume four watts each, your combined lighting wattage is 20. Simply multiply 20 watts by 1.2 (20 x 1.2 = 24) to determine which power supply you’ll need.

What happens if I use 24V instead of 12V?



12V systems require massive wires when pulling large loads because the current (amps) are higher. As we have already learned, 24V systems reduce the current or amps two times, then a downside of a 12V system is the amperage is double that of a 24V system at the same power.

Is 24V LED brighter than 12V?

There is no difference in brightness between a 12v and 24v LED strip light; the voltage does not determine the light output. (Other things do, such as the quality of the LEDs.) Longest run in series: The 24v strip suffers less voltage drop than the 12v type.

How many volts is a LED strip?

LED light strips generally fall into two voltage categories – high voltage (110 volt or greater) and low voltage (24 volt or below).

What is the difference between 12V and 24V LED strip?



The main difference in the 12V and 24V LED strip lights is that 12V has more frequent cutpoints suitable for corners. On the other hand, 24V strips can run a longer distance without experiencing voltage drop.

How do you power a long LED strip?

Quote from the video:
Quote from Youtube video: So that you can happen off one power supply. So there's a large power supplier. High power power supply. So you do not need to have a power supply every five meters.

How many watts is a LED strip?

The LED strip has a power consumption of 14W / m. 14 x 8.5 = 119 Watts in total. So you need a LED power supply (sometimes referred to as a LED driver) that can deliver at least 119 Watts. However, it is recommended that you make allowances for unintentional overloads.

How do you power a 20m LED strip?

Quote from the video:
Quote from Youtube video: With five cables. And they could all be wired back to five power supplies or or back to one power supply.