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Quasar Science - Help Center

Q-Lion Operation & Charging


  • Turn on: Single Tap Power Button

  • Turn off: Double Tap Power Button

  • Power button operation & indicator lights "sleep" after 10 seconds of inactivity—tap Power once to awake lamp & resume controls.

Intensity Control

  • Change Intensity: Wake up from device sleep. Briefly tap once & wait for intensity to dim to next lower level.

  • Battery-only operation output levels:

    100% 75% 50% 25% 10%

  • After 10% intensity, single tap shuts off lamp. Additional tap turns back on to


  • While plugged in, the lamp can operate while charging. Intensity options reduce for Q20 & Q10 lamps. Q5 lamps retain all options.

  • Plugged-in operation output levels:

    Q20: 50%, 25%, 10%

    Q10: 75%, 50%, 25%, 10%

    Q5: 100%, 75%, 50%, 25%, 10%

  • Q-Lion Lamps will charge to full in about 4 hours.

  • Q-Lion Lights each last for about 4 hours at 100% Output. 10 hours at 10% output.

Color Temperaure (CCT) control

Change CCT: Long Press Power Button

  • Available CCT options: 3000K, 4300K, 5600K

Travel Mode

  • KILL button: Press & hold with a pen tip to disable lamp functions for travel.

  • Plug in charger to reactivate lamp.

Reset Lamp

  • RST button: Press & hold with a pen tip to reset lamp firmware to default 100% output @ 5600K CCT (in cases of software malfunction).


  • To charge: plug in included QC3.0 charger with a microUSB cable.

    The power light blinks while detecting the charger. Then a blinking indicator light shows the current charge level.

  • Battery level indicator lights: 25%, 50%, 75%, 100%

    (Low battery = 25% indicator rapid flashes)

  • QC3.0 USB chargers rated 9V/2A or 12V/1.5A must be used to charge lamp;

    standard 5V USB chargers do not work.

  • If there is insufficient charging voltage from a standard power adapter, the Power button light flashes quickly, then turns off.

  • When the lamp is illuminated and is being plugged in, the lamp will briefly flicker when changing over to DC Power.

Battery health tips

  • Frequent full discharge of lamp battery to 0% and/or frequently leaving charge at 100% for extended time periods rapidly deteriorates battery life.

  • Frequent use of plugged-in operation rapidly deteriorates battery life.

  • For maximum battery health in long term inactive storage, charge or discharge battery to 50%.