Question regarding the Pannon 30 LED per meter 24 Volt RGB LED strip:
On the following page: HERE the 24 Volt RGB LED strips were compared to show how much better they are compared to the 12 Volt ones. I understand that because the rolls are 5 meters long, the performance of 5 meter lengths were compared, and since the V-TAC roll is 10 meters long, its values for 10 meters were also shown. I also understand that this V-TAC strip has been adequately praised for how good it is, with 60 LEDs per meter and only 40% of the light at the end of 10 meters, but I’m curious about the 10-meter performance of two Pannon LED strips (30 LEDs/meter) that I solder together, as I feel that the decrease in light would be even smaller. And Pannon is still expected to be of higher quality because it is double-layered PCB and at such a great length many people may not mind that there are only half as many LEDs. After all, consumption is theoretically the same order of magnitude, so luminous flux is similar.
So I would like to know what the Pannon 30 LED/meter 24 Volt RGB LED strip produces over 10 meters, because I think it would win.
Answer:
I conducted a series of measurements.
In short: yes, the Pannon 30 LED 24 Volt RGB won over 10 meters.
It won, if only this one aspect, that the luminous flux decreases less. Yes, the light of the 60 LED V-TAC is 40% less at the end of the 10th meter, while that of the 30 LED Pannon is only 27% less. Another aspect is that I also consider it more reliable.
Above all, I still hold the opinion that the 60-LED per meter looks better, and if we look at the lower table, we can read that Okay, the Pannon light decreases less, but the V-TAC’s remained stronger. But let’s not forget the Pannon’s 30 at 16.6 cm apart. Some might find it intimidating.
| LED strip length | Pannon 30 LED/meter – 24 Volt RGB LED strip with single power supply |
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| Measured with Miboxer controller, set to maximum white light | ||||
| Power consumption without power supply (calculated), Watt |
Consumption with 150 Watt Scharfer power supply – measured, |
Power consumption with plug-in adapter (calculated), Watt |
Illumination ratio measured at the end of the strip compared to the front 100% | |
| 1 meter | 8.0 | 9.2 | 10.1 | 100% |
| 2 meters | 15.1 | 17.3 | 18.9 | 99% |
| 3 meters | 21.5 | 24.7 | 26.7 | 98% |
| 4 meters | 27.7 | 31.8 | 34.3 | 95% |
| 5 meters | 33.1 | 38.0 | 40.7 | 91% |
| 6 meters | 38.2 | 43.9 | 47.0 | 88% |
| 7 meters | 43.1 | 49.5 | 52.5 | 84% |
| 8 meters | 47.1 | 54.1 | 56.8 | 80% |
| 9 meters | 50.6 | 58.2 | 60.5 | 76% |
| 10 meters | 53.4 | 61.4 | 63.2 | 73% |
If I’ve already measured, I’ve not only measured the 10 meters, but also the consumption values per meter. So the actual measured consumption values were obtained by setting a Miboxer RGB controller to maximum white light output and measuring consumption collectively with a 150 Watt Scharfer power supply. Since there are many types of power supplies with different efficiencies, and this power supply has an efficiency specified by the manufacturer as 87%, the power consumption without supply was obtained with its correction, but of course it also applies to control. Different controllers may mix white light differently (but close to the same values), and similarly different values are obtained without control. But in this case, it can be agreed that without control, it is unlikely that anyone would use an RGB strip. Plug adapters are generally inexpensive and have poor efficiency power supplies, so they generally result in 3-6% higher consumption (but not more light) than serious power supplies.
What else is this table good for?
Serious execution, if seen: – can think about what I’m doing here with measurements of a one-sided powered LED strip. Everyone knows that in a high-quality execution, we cut the strip and connect both ends. Yes. In this respect, the table is good, as all of these multiply by two. If you are interested in setting up 16 meters and will only set up the two ends of the 16 meter section, pay attention to the eight meter row. Therefore, as long as both edges are at 100%, the middle, the eighth meter, will illuminate at 80% and the maximum consumption will be 2×47.1 watts, which means that you have already found that your 16-meter system with a 100-watt, 24-volt power supply is enough. Without this table, you only know that nominal consumption is 7.2 watts per meter, which is 16 meters, which means that you are very likely to purchase a 150 watt power supply – which is a good solution but a little more expensive.
| The illumination ratio measurable on strip sections when the strongest measurement is taken as 100% | ||
| V-TAC 60LED/meter – 24 Volt RGB LED strip with single-end power supply | measurement points | Pannon 30LED/meter – 24 Volt RGB LED strip with single-end power supply |
| 100% | At 0 meters | 77% |
| 100% | At 1 meter | 77% |
| 99% | At 2 meters | 76% |
| 96% | At 3 meters | 75% |
| 93% | At 4 meters | 73% |
| 89% | At 5 meters | 70% |
| 85% | At 6 meters | 67% |
| 80% | At 7 meters | 64% |
| 75% | At 8 meters | 62% |
| 70% | At 9 meters | 59% |
| 65% | At 10 meters | 56% |
From the table, it can be seen that the brightness of the two strips, V-TAC’s is stronger. (Yes, I really measured the brightness.) So, if I take the measured brightness (lux) value at the supply point of V-TAC as 100%, then Pannon’s 30 LEDs are only 77% at the connection point (which is good, considering that it has half the LEDs), and at 10 meters, V-TAC is at 65%, while Pannon is at 56%. So, despite Pannon’s brightness decreasing less, since it starts with lower brightness, the brightness of V-TAC’s 60 LEDs would be better after 10 meters.
Yes, here’s a surprise, I measured V-TAC at 65% at 10 meters, although earlier it was 60%. Such a difference means that the nominal values of resistors soldered to the strips can show dispersion (strips equipped with cheaper resistors may have greater dispersion), so even among strips of the same type and production series, such differences can be expected. This also suggests that my power consumption values, which I gave with decimal precision, can easily have 5 percentage point differences or who knows – even more. This only proves that none of my numbers can be taken as absolute, but only interpreted in their trend.
Yes, Pannon’s 30 LEDs are a more serious construction, I never denied that. I said that V-TAC’s product is a cuckoo egg and it brought out better results in a tricky but spectacular way. This is favorable for those who want to create something more spectacular with simpler execution.
You see, I don’t need to say that these are not authentic measurements!