LED Characteristics Trainer Analog is an SSI India product in the BASIC ELECTRONICS LAB category. Key specifications include SKU: PBE-E194A. DC Supply IC Regulated 0-5V DC, 150mA. Voltage Control through Potentiometer. Series Resistor 470E SALIENT FEATURES. Operated on Mains power 230V, 50Hz. Supply provided through the 3 pin computer socket