subject: Led Power Calculations [print this page] If you are preparing on setting up LED remove lighting (also known as LED tape) you need to be able to perfectly determine the energy needed. Having inadequate energy will cause to only some (or none) of the LEDs lighting, or can cause discomfort sparkle. An over specified energy will price more to buy, and will also be more complicated to fit as they are larger.
If you are preparing on setting up LED remove lighting (also known as LED tape) you need to be able to perfectly determine the energy needed. Having inadequate energy will cause to only some (or none) of the LEDs lighting, or can cause discomfort sparkle. An over specified energy will price more to buy, and will also be more complicated to fit as they are larger.
To determine the energy needed for your new LED remove lighting, you need to know:
Length of the LED strip
Number of LEDs per metre
Power intake 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/metre and then multiply this by the power of the LED (0.08w to 0.24w per LED are typical values). Then divide the value by 12 volts to calculate the required Amperage of the power supply.
(Length of LED Strip x LEDs per Metre x LED Power) / 12
We recommend you add at least 10% to the calculated value to allow for resistance and losses in the cables. You would also need to allow for any possible expansions or additions in the future. Most LED Strip Lights can have additional sections added using joining cables.
Calculation Examples:
Example 1: A 5m roll of SMD3528 (0.08w) with 60LED/m would be: (5m x 60 x 0.08) / 12 = 2amps +10% = power supply of 2.2Amps.
Example 2: A 5m roll of SMD5050 with 60LED/m would be: (5m x 60 x 0.24) / 12 = 6amps +10% = power supply of 6.6Amps
For any LED strips over 2 metre in length you can provide a 12volt feed to both ends of the strip or one feed in the middle, by cutting the strip into two and connecting the power supply to both strips. This gives a more even power distribution and should provide a more consistent illumination.
LED Remove Mild Uses
There are two significant factors for using LED pieces. One is performance LED lighting style are very effective, with most of the energy going to generate light, not warm. Their incredibly longevity (20,000 time is typical) indicates that they also do not need changed very often, resulting in greatly decreased life-time expenses.
The other purpose is visual. LED lighting style can be made incredibly small some LED light pieces are as slim as 4mm and so can be set up in locations where conventional lighting style would not fit. Add to this the various LED color choices, such as RGB LED pieces with color modifying capabilities. This gives a whole new variety of possible lights that can considerably modify the look of a space.
