I bought Kimbe smart300, but the small green light next to the infrared receiver of one lamp doesn't light up, but everything is normal. Will it affect my future work?

If you press the flash test button on the back panel of the lamp, it should light up. If this lamp is plugged with a flasher, you don't need to turn on this switch. If all the other lights are on, don't worry. If it is found that it is really abnormal compared with other lamps alone, it should be checked during the warranty period.