Transformer for LED loop, Indoor, PureStrip 12V

Transformer for LED strip, for indoor use. Meets EMC and LVD requirements. Using this transformer together with the LED strip is simple and no advanced installation or knowledge in electronics is necessary. Power 12W.

Note! Be sure to choose enough power on the transformer to handle the LED strip.

Characteristics

• Make and model: Transformer for LED strip, Indoor, PureStrip 12V
• Area of use: Power supply for LED strip
• Operating voltage: 110 - 240V AC
• Input frequency: 50/60 Hz
• Output voltage: 12V DC
• Output current: 1A
• Dimensions: 90 x 80 x 28 mm
• DC cable length: 150 cm
• DC connector dimensions: 5.5mm x 2.1mm
• Colour: Black

Measurement of power supply and transformer

Selecting an LED strip or power supply/transformer and calculating the appropriate power is a simple procedure.

First check if the LED strip or fixtures operate on 12V or 24V, and select a 12 or 24V transformer/power supply accordingly.

The total power (W) required for the strip or fixtures is then calculated and a "safety margin" of at least 10% is added (so that the power supply does not run continuously at 100% power). The equation gives a reading (eg 30W). The power of the transformer must be greater than the power obtained from the calculation ( W ). There is no harm in an oversized transformer, but in this case more lamps can be added to the same transformer later if desired.

In LED strips, the power is usually expressed in watts per meter, e.g. 4.8 W/m or 14.4 W/m. In these, one meter of LED strip has a power of 4.8W or 14.4W. If it is intended to install a 4 meter 4.8 W/m LED strip, the power required by the strip is 4 x 4.8 = 19.2 W. If several strips are installed behind the same transformer, the length of the strips is added together.

In luminaires, power consumption is usually expressed in power (watts, W). If several luminaires are connected to the power supply or transformer, the power required by them is added together. For example, 3 7W luminaires have an output of 21W.

Example: You want to install 2 three-meter 4.8 W/m LED strips in the kitchen, and you also want three 7W spotlights in the ceiling. All luminaires run on 12V and must be connected behind the same transformer. Calculate the appropriate transformer power:

• The power of the LED strips is: 2 (st) x 3 mx 4.8 W / m = 2 x 3 x 4.8 = 28.8 W
• The power of the headlights is 3 x 7 W = 21 W.
• The combined power of the strips and spots is 28.8 W + 21 W = 49.8 W
• Add 10% "safety margin" = 49.8 W x 1.1 = 54.78 W
• The selected transformer must have an output of at least 54.8 W, i.e. a 60W transformer is sufficient.

Calculation formulas

• Power ( W ) = operating voltage (V) x current (A)
  • for example. 12V x 2A = 24W
• Current (A): Power (W)/ Operating voltage (V)
  • for example 200W / 12V = 16.6A
• Operating voltage (V): Power (W) / current (A)
  • for example 144W / 6A = 24V