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Re: Experimentations with high powered LEDs for microscope illumination
Posted: Tue Jul 14, 2015 3:32 pm
by Crater Eddie
That's the problem working on a project via "long distance", it's very easy for misunderstanding to take place.
I'll be interested in what they tell you. They were very fast in their response to my inquiry.
Re: Experimentations with high powered LEDs for microscope illumination
Posted: Tue Jul 14, 2015 5:39 pm
by 75RR
No answer to the email, and though on page 2 of the PDF it does state that the Control/Dimming goes from 0 - 10V, which would seem to imply that whoever drew the charts did not bother to extend the voltage/current curve to 0 (see range of present Controller/Dimmer in red as a comparison), I do not think I can risk $18 + postage on a maybe.
Do need the Voltage/Amperes at 0 when the Dimmer is turned on and off.
Nominal 10V setting on Power Supply
IN Range 13.4V -11.3V
OUT Range 2.24V - 11V
OUT Range (Incl. Resistor) 1.98V - 3.2V
Current Range 0.05A - 2.12A
Nominal 12V setting on Power Supply
IN Range 16V - 13.2V
OUT Range 2.3V - 12.9V
OUT Range (Incl. Resistor) 2V - 3.3V
Current Range 0.07A - 2.74A
Re: Experimentations with high powered LEDs for microscope illumination
Posted: Wed Jul 15, 2015 1:49 pm
by billbillt
I bought one of these on Ebay to try out instead of the 20A unit that costs more than twice as much... According to my calculations, a 10A unit is more than adequate up to an including a 10W LED...
http://www.ebay.com/itm/251539147533?_t ... EBIDX%3AIT
Re: Experimentations with high powered LEDs for microscope illumination
Posted: Fri Jun 02, 2023 3:46 pm
by ADi
Hi,
I use the XHP50.2 because it fits well with the Köhler illumination of the Lomo.
A larger LED would unfortunately not bring much.
Best, ADi