I bought two LED light strips and connected them together end-to-end using a solderless snap connect. The strips are each 5 meters long, "LEDMO SMD 2835 White Non-waterproof LED Light Strip - DC12V 600LEDs 16.4 Ft 6000K 15Lm/LED High CRI80". Then at one end I connected a remote control reciever "LE® Mini Remote Controller for Single Color LED Strip Lights, RF Dimmer for 12 V DC LED Light Strips, 12A". To that I then connected a power supply adapter that is "12V, 5A Max, 60 Watt Max". It works great for a couple of weeks and then the lights just get dim. It is like they are stuck at half power. I replaced the power supply once and they were bright again for a week or two and then they get dim again. I wonder if I am burning out the power supply because I have something configured wrong?
You need to choose a power supply that has the appropriate capacity to drive your LED strips. Since your strips need 5A at 12V to operate, and you are intending to run two strips off of one power supply, you need a power supply that can supply at least 10A at 12V.
So, search for a 12V power supply that can supply at least 10A. If you want it to last a while, find one that can supply at least 15A.
- you need to calculate Watts by meter and watts total per strip.
- with total wattage, calculate total watts divided by voltage.
- result will be the supply amp rating.
- watt/m - Watts x meters - Total Watts /12V = Amps needed
- 5.76W/m = 28W/5m = 2,4A (make at least 2,50A to be safe, 3,0A is better)
- 14.4W/m = 72W/5m = 6,0A (make at least 6,25A to be safe, 6,5A is better)
Hope it helps.