There are 3 different modes to select from based on the procedure and the requirement. - Select the exposure time by pressing the mode button briefly. - While exposure is ongoing, the button for selection of the exposure time is inactive. (3s or H) – This setting provides high power to the LEDs, helping them generate a higher power output up to 2,000mW/cm². Since the LEDs function at such high power level, only the 3 second curing cycle is provided to avoid premature LED failure. You can use multiple boost cycles in succession to obtain longer Boost curing. (10s or L) – Provides low light energy exposure at 10 seconds exposure. Choose this setting for special lighter or darker shade curing requirement or when light energy declines after long time use. (Ramp Up) - An initial 45 - 60% energy of high intensity and then switch to high intensity 2,000 mW/cm² constant. Total 5 seconds (3 seconds low intensity + 2 seconds high intensity). Battery Char…