The diode stack, also referred to as the diode matrix, laser bar, or laser module, is a fundamental part of a diode laser handpiece. For hair removal lasers manufactured in China, the macro-channel diode stack is the most frequently selected option, operating at a wavelength of 808 nm. To consult or order parts, please reach out to us at +79180110234. We will help you find the best prices available. If your laser has stopped flashing, the diode stack might be the issue. We provide FREE CONSULTATIONS FOR LASER ISSUES for your convenience. You can contact us via WhatsApp or Telegram at +79180110234