Datasheet Summary
A simple, low cost, conversion of incandescent-lamp illuminator to a power LED
By Dushan Grujich, on October 15th. 2012
My LOMO Biolam 70 has e with the OI-32 illuminator using a 220V AC 15W incandescent-lamp, which, when used for longer period gets very hot to the touch. This situation had me thinking of replacing incandescent-lamp with a power LED. My experimenting with power LEDs resulted in permanent conversion of the OI-32 illuminator. To drive the power LED I have used a low cost 10 W DC-DC Step Down Converter, KIS-3R33S module, capable of delivering up to 3A continuously. This module es with output voltage preset to 3.3V. However, it is easy to readjust and have output set at...