ຂະຫນານນໍາພາຜູ້ຄິດໄລ່ resistor ໃນປະຈຸບັນ Vin Volt Voltage Drop Across LED Volt Desired LED Current mA No.of LED Connected Parrallel Output of Parallel LED Resistance Calculation Limiting Resistor Ohms Calculated Resistor Wattage Watts