September 24, 2020

Calculating Power Supplies for LED Strip Lighting

If you are planning on installing LED strip lights (also known as LED tape) you need to be able to accurately calculate the power required. Getting insufficient power supply will lead to just some (or none) of the LEDs illuminating, or can cause irritation flicker. An over specified power supply will definitely cost more to buy, and will also be harder to suit as they are bigger.

To determine the power supply required for your new Led strip lights lights, you need to know:

Length of the strip or tape
Number of LEDs per metre
Power consumption per LED
To calculate the size of power supply (in Amps) you need to multiply the length of the LED tape by the number of the LEDs per metre and then multiply this particular by the power of the LED (0. 08w to 0. 24w per LED are typical values). After that divide the value by 12 volts to calculate the required Amperage of the power supply.

(Length of LED Strip x LEDs per Metre x DIRECTED Power) / 12

We recommend you add at least 10% towards the calculated value to allow for resistance and losses in the cables. You would also have to allow for any possible expansions or additions in the future. Most LED Strip Lighting can have additional sections added making use of joining cables.

Calculation Examples:

Example 1: A 5m roll associated with SMD3528 (0. 08w) with 60LED/m would be: (5m x 60 x 0. 08) / 12 sama dengan 2amps +10% = 2 . 2Amps.

Example 2: A 5m roll of SMD5050 with 60LED/m would be: (5m x 60 x zero. 24) / 12 = 6amps +10% = 6. 6Amps.

For any LED strips over 2 metre distances in length you can provide a 12volt give food to to both ends of the remove or one feed in the middle, simply by cutting the strip into two and connecting the power supply to both strips. This gives a more actually power distribution and should provide a more consistent illumination.

LED Strip Light Utilizes

There are two main reasons for making use of LED strips. One is efficiency : LED lights are very efficient, along with most of the power going to produce light, not heat. Their extremely long life (20, 000 hours is typical) means that they also do not need replaced very often, leading to vastly reduced lifetime expenses.

The other reason is aesthetic. BROUGHT lights can be made extremely small – some LED lighting pieces are as thin as 4mm – and so can be installed in places where traditional lights may not fit. Add to this the various LED colour options, including RGB LEDs with remote controlled colour changing abilities. This provides a whole new range of possible lighting effects that can dramatically change the look of the room.

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