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United Kingdom , USD
United Kingdom , USD
Banggood Dear de_mohr: For your concerns, if you fing this item with lower source and you can provide a office mathematical proof to us. We can arrange refund you the difference to you. In this case, we might need to find out who was dealing with your order and what was his/her solution.
01/06/2024
phatslug Whats the current at 34V? That could be much higher. Thanks.
Beantwoorden 11/02/2015
sanblanco I'm an electrical engineer and the difference between 32 or 34 V for the total power consumption is very little. The power = current x voltage. 32V x 0,42A = 13,44W OR at 34V = 34V x 0,42A = 14,28W (assuming the current wil stay allmost the same). So there is a huge gap between 50W and 14W. This is a difference of 72% less!!
Beantwoorden 27/02/2015
sanblanco Sad, my previous post has been deleted. the current at 34V is allmost the same as 32V. And the amount of wattage stays the same as calculated. So as I said in my previous post the amount of wattage is about 72% less!! Let's see if this post will be deleted again.
Beantwoorden 01/03/2015
rafx10 LED ligts are should be driven by current, not voltage. Dear elecrical engineer, you should know that little growth of voltage can cause big current's changes. Maybe you could measure 0,6A with 34V! I will check it if I receive it.
Beantwoorden 09/03/2015
patrikvhe Well, as rafx10 said, dear electrical engineer, I'm very worried about your electrical knowledge regarding light emitting diodes. The current vs voltage curve is absolutely not a straight curve for LEDs, an LED is not like a resistor. The difference between 32V and 34V can surely be a difference in 14W and 50W, just as the different between 34V and 35V can be 50W vs a LED on fire. Any LED over 5W should be driven with a LED driver, where you can keep a constant current.
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