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Can the LED power supply be connected to the power supply all the time?

Roxron 27786 43
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Treść została przetłumaczona polish » english Zobacz oryginalną wersję tematu
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  • #31 16027601
    Roxron
    Level 6  
    I understand, thanks for the clarification. Overall it doesn't need 5 meters of tape, 4 would be enough for me, so if I cut off that 1 meter will the consumption decrease? Will these 4 meters of LED then consume the same amount of current and be able to burn out?
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  • #32 16027717
    Adamcyn
    Level 38  
    4m x 14.4W = 57.7W
    The power supply will be lighter, but it works close to its max. capacity 60W.

    Nothing will happen to the diodes, because they are always powered by the same 12 V voltage.
  • #33 16027744
    mawerix123
    Level 39  
    Roxron wrote:
    Overall it doesn't need 5 meters of tape, 4 would be enough for me, so if I cut off that 1 meter will the consumption decrease?


    This power supply with a safe power reserve is enough for only three 3 meters of tape.
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  • #34 16027821
    Roxron
    Level 6  
    And if the LEDs are on only in one color, e.g. Green, will the 4m strips consume 4.8*4=19.2W? Do they always draw 57.7W? And reducing the brightness will also relieve the power supply?
  • #35 16027833
    mawerix123
    Level 39  
    Roxron wrote:
    And if the LEDs will be turned on only on one color, e.g. Green


    And if someone decides to change the color and turn them all on :?:

    Roxron wrote:
    will 4m tapes consume 4.8*4=19.2W?


    Yes.

    Roxron wrote:
    Do they always draw 57.7W?


    NO.

    I know what you're getting at :D a set with allegro PLN 49 and a suitable power supply for them costs over PLN 100 ;)
  • #36 16027866
    Roxron
    Level 6  
    Trying to minimize costs as much as possible, you know :) So theoretically they never consume these 57.7W, because this situation is only on white. Well, not wanting to spend an extra penny on the power supply, you have to limit yourself to 4m, one color and lower brightness. Thank you for your help, if I encounter any problem, I will write, and if not, I will close it.
  • #37 16028454
    zbich70
    Level 43  
    Roxron wrote:
    Trying to minimize costs as much as possible, you know :)

    Additional question - this LED power supply for your only receiver?
    You want to minimize costs on idling power supplies, but you probably have other power-hungry receivers whose power is several kilowatts. You don't care about that?...
    I know people who turn on stoves, boilers, ovens and kettles to the max without the slightest inhibition... until the protection is activated ... and then, attention, they ask how much the phone charger takes, because they want to reduce costs ...
  • #38 16028486
    Adamcyn
    Level 38  
    Roxtron meant optimization of investment costs, not operating costs.
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  • #39 16028624
    Roxron
    Level 6  
    As you wrote above.

    I connected 4m to the power supply and all in all there is not much difference, even with one color the power supply is very warm, at least it does not burn, although I do not know what it looks like after prolonged operation.
    Out of curiosity, I connected the cut meter of tape and set it to white. The power supply was probably even warmer than in the previous case, and the LEDs got so hot that they began to burn. Probably because I left them wrapped on a roll or from too much power. I am only surprised that the power supply reached such a high temperature even with 1 meter of tape. Maybe it will always heat up regardless of the energy demand of the leds?
  • #40 16028887
    Adamcyn
    Level 38  
    Roxron wrote:
    The power supply was probably even warmer than in the previous case, and the LEDs got so hot that they began to burn

    You have a meter, so be sure to measure the voltage before you shoot off the LEDs due to too high voltage from a damaged power supply.

    Can you handle this 12 volt DC measurement?
  • #41 16028996
    idepopizze
    Level 33  
    It is also worth finding out how much the LED driver itself consumes for its own use, because it can cause this warm power supply even when the LEDs are not lit.
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  • #42 16029266
    Roxron
    Level 6  
    After connecting the power supply, the output voltage oscillated around 12V, and after about 10 minutes of operation, the voltage oscillated around 12.1V. The power supply got warm, but after these 10 minutes it is warm, not hot.
  • #43 16029705
    kosmos99
    Level 38  
    Like the one I had with the tv antenna power supply, at the beginning it was hot even though the current efficiency was only 100mA, and then it cooled down even though nothing in terms of working conditions has changed.
  • #44 16029781
    Roxron
    Level 6  
    Then I will turn it on for a longer time and observe.

    What power supply do you recommend? Maybe it's worth buying a modular one? Is it better than the plastic one? Because on Allegro, prices do not differ too much. Look for a 12V 6A power supply or choose a 5A like this one?
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Topic summary

The discussion revolves around the safety and implications of keeping an LED power supply connected continuously, particularly for RGB LED strips. Users express concerns about the power supply heating up even when the LEDs are off, questioning whether this could shorten the power supply's lifespan or lead to potential hazards like smoking or exploding. Responses indicate that while the LEDs themselves are not affected, the power supply may experience a reduced lifespan due to constant operation. Users also discuss the quality of the power supply, with some suggesting that a faulty or low-quality unit could overheat. The conversation includes technical details about power consumption, with calculations indicating that a 5m SMD5050 LED strip could draw significant power, necessitating a power supply with adequate capacity. Recommendations for measuring power consumption and considering a higher-rated power supply are also provided.
Summary generated by the language model.
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