Voltage drop or ‘volt drop’ happens in all types of electrical installations. When larger power cables are being installed more advanced calculations should be made to counteract the problem. However, when LED power supply or tapes are concerned there are some simple guidelines to follow.
Volt drop in LED strips happens when the LEDs are positioned too far away from the power source or when longer individual runs (or lines) are attempted. This takes place because inadequate power or electrical current reaches the LEDs, since it has further traveling. This leads to the voltage to decline or drop towards the end in the run.
Voltage drops out approximately .6V every metre and is also less noticeable with 24V strips. When utilizing 12V strips, a 2-3V drop over a 5 metre run would lessen the voltage by 25% subsequently decreasing the lumen (brightness) by way of a similar percentage.
Volt drop may be in comparison to a person climbing a mountain, the greater the altitude, the thinner the oxygen becomes and the minus the person can breathe.
The LEDs at the start of the fishing line will show up bright at 100% output but the LEDs right at the end from the line will quickly fade. The brightness will reduce exponentially; the further away it gets out of the source of energy. Potentially the sunshine output may be reduced to % if greater distances were incorrectly attempted and cause permanent damage to the LEDs.
Volt drop in single colour strips are barley noticeable, specifically in shorter lengths. Colour changing strips are definitely more visible once you turn the colour to white. If you have insufficient voltage right at the end from the strip the clear white colour will turn pink right at the end of the line. It is because white colour is mixed from red, green and blue (RGB). However, the red requires less voltage than green and blue. Once the strip is significantly from your power supply, green and blue don’t get enough voltage and turn into weaker, whilst the red colour grows more prominent and turns white into pink.
The greater the wattage from the LED strip, the short the run needs to be. For example; 30 LED (7.2W) per metre strip can have a maximum run of 10 metres, compared to the 60 LED (14.4W) per metre strip which can have a maximum run of 5 metres.
This does not necessarily mean you can’t install longer runs of LED strip, it just means that you need to take a different approach. Single colour strips and colour changing (called RGB) strips are different because colour changing LED driver ul need to be controlled in one controller. Employing a higher rated power supply fails to fix the problem because the current continues to have to move through a long type of LEDs and resistors, every one draining small quantities of power.
Single colour strips ought to be wired directly to the power supply in 5 metre of 10 metre runs depending on the version of strip i.e. 30 or 60 LED which is used. Each run will likely be powered straight from the ability supply and can be switched on or off by switching a switch or unplugging it through the mains. The power supply is normally wired to your light switch but could be controlled by various types of controllers. The strips may then be positioned nevertheless you like, in a single long line or in a rectangle shape for example. When the strips are positioned close to the other person the sunshine will appear seamless, like a fluorescent tube. The run may be over 100 metres hapmys length so long as the energy supply was rated appropriately.
Volt drop will occur slightly in the connecting power cables but as there are no LEDs or resisters etc draining the current, the volt drop will be barley noticeable. Thicker cables may be used to reach further distances.
For extended runs of colour changing strip, you should fit amplifiers every 5 or 10 metres. Amplifiers allow the strips to get powered indirectly from the power supply but additionally allow the signal from your controller to pass from the entire run of strips. This way whenever you turn the colour to red for instance, everything turns to red concurrently. The amplifiers power the strip, the ability supply powers the amplifiers. Amplifiers can even be powered using their own separate power supply and you can have as much power supplies as you wish on the same run. The ability supplies can be positioned nearer to the LED strip connection or wherever is most accessible.
For prolonged, more complex runs we could supply our customers making use of their own easy to understand wiring diagram. The diagram illustrates the way the power source, strips and cables are connected together. As part for our LED Strip Fit brand, LED Constant voltage drivers can be supplied for the exact lengths required; everything apart from the larger hard wired power supplies may be plugged into each, requiring no tools or electrical knowledge.