these heat sinks go in the 501B host. I have many 501B lasers, they all use a module like this, though some are copper. you should be able to fit everything in it, (diode, driver, driver HS, battery spring board) it allows room for two 18350s, two 16340s, or one 18650 battery, depending on your driver's needs
these heat sinks go in the 501B host. I have many 501B lasers, they all use a module like this, though some are copper. you should be able to fit everything in it, (diode, driver, driver HS, battery spring board) it allows room for two 18350s, two 16340s, or one 18650 battery, depending on your driver's needs