Home / G12 - Lights with film quality Leds built in / LEDC4-Qty-2. 13.3 amp 24 volt power supply with 24 circuit 4 amp per channel dimming decoder in hinged metal box. LEDC4-Qty-2. 13.3 amp 24 volt power supply with 24 circuit 4 amp per channel dimming decoder in hinged metal box.