Voltage drop or ‘volt drop’ happens in all kinds of electrical installations. When larger power cables are being installed more complicated calculations has to be made to counteract the problem. However, when LED power supply or tapes are concerned there are a few simple guidelines to follow.
Volt drop in LED strips happens when the LEDs are positioned very far out of the source of energy or when longer individual runs (or lines) are attempted. This occurs because inadequate power or electrical current reaches the LEDs, since it has further traveling. This causes the voltage to decline or drop right at the end from the run.
Voltage drops out approximately .6V every metre and is less noticeable with 24V strips. When using 12V strips, a 2-3V drop spanning a 5 metre run would decrease the voltage by 25% subsequently lowering the lumen (brightness) with a similar percentage.
Volt drop might be in comparison to a person climbing a mountain, the higher the altitude, the thinner the oxygen becomes and the minus the person can breathe.
The LEDs at the beginning of the fishing line will appear bright at 100% output but the LEDs right at the end in the line will start to fade. The brightness will reduce exponentially; the further away it gets out of the power source. Potentially the sunshine output might 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, particularly in shorter lengths. Colour changing strips are definitely more visible once you turn the colour to white. When there is not enough voltage right at the end from the strip the clear white colour will turn pink towards the end in the line. This 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 way from your power supply, green and blue don’t get enough voltage and be 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 ought to be. For example; 30 LED (7.2W) per metre strip could have a maximum run of 10 metres, when 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 merely means that you should require a different approach. Single colour strips and colour changing (called RGB) strips are not the same because colour changing LED driver ul must be controlled in one controller. Utilizing a higher rated power source will not fix the problem since the current still has to move via a long line of LEDs and resistors, each one draining small amounts of power.
Single colour strips ought to be wired directly to the ability supply in five 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 power supply and can be turned 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 controllers. The strips may then be positioned nevertheless you like, in a single long line or in a rectangle shape as an example. After the strips are positioned next to one another the light can look seamless, just like a fluorescent tube. The run could be over 100 metres hapmys length so long as the ability supply was rated appropriately.
Volt drop will occur slightly within the connecting power cables but since 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 longer runs of colour changing strip, you should fit amplifiers every 5 or 10 metres. Amplifiers allow the strips to become powered indirectly through the power supply but additionally permit the signal through the controller to pass with the entire run of strips. In this way once you turn the colour to red for example, everything turns to red simultaneously. The amplifiers power the strip, the energy supply powers the amplifiers. Amplifiers can even be powered using their own separate power supply and you might have as much power supplies as you wish on the same run. The ability supplies can be positioned closer to the LED strip connection or wherever is most accessible.
For longer, more complicated runs we are able to supply our customers with their own simple to follow wiring diagram. The diagram illustrates just how the power supply, strips and cables are connected together. As part for your LED Strip Fit brand, LED Waterproof power supply can be supplied to the exact lengths required; everything apart from the larger hard wired power supplies may be connected to each, requiring no tools or electrical knowledge.