hat
2. pa nan 2: toujou prezan net ale pou peze kle a "vitès-" pou 3 fwa ak nan kèk segond 5 apwè pa nan 1, Klate ki poul pwal chanje de 50%-10% tankou bay repons.
eng
2.Step 2: Continuously to press the key "speed-" for 3 times with in 5 seconds after step 1 ,the brightness of LEDs will change from 50% -10% as responding.