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I would have thought that the US board only regulates the current, not the voltage. Thus running a Lux III on the Lux V setting would simply be an underpowered Lux III. Am I wrong here?
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Council Member
Jedi Council Member
The Ultrasound boards regulate both the current and the voltage, so running a III on the V setting might not be such a good idea.
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Does anybody know the output voltages on the different settings of the US 2.5? Or does anybody know who I can email to get the answer?
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I was actually Intending on using a LedEngin Amber. with two dies in parallel and two pair in series. Run at the K2 setting all 4 die should have been powered at 75%, which still would have been bright. But if the voltage is regulated than the K2 setting will only supply about 3.6-4.4 Volts, less than the 5.2 volts my LED needs. Usually, the board simply detects how much voltage is required by the LED and supplies it (assuming it has enough coming in battery-wise), but if the Ultrasound is fixed than it won't. I emailed Liam at Ultrasounds about this after Jay-Gon suggested it may be fixed and his reply is that as far as he knows the settings are not fixed, He is going to get back to me about it. When he does, I will post a definitive answer, one way or another.
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Council Member
Jedi Council Member
The last time I metered one, the voltage was different for each setting, and was close to the specs for the particular led, but maybe they have changed it for the 2.5.
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The power management on the board has not fundementally changed. Its been tweaked to be more efficient, but Jay Gon is correct.
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