Is it normal that the indicator light of laser mark control board is not seen after powered on?

CO2 laser marking machine application on leather, customizable portable co2 laser marking machine for more different products.

Rotary laser marking engraving machine working on gel pen.

Metal Laser Marking Machine, Fiber Laser Marker for Stainless Steel, Aluminium Alloy, Etc. Fiber laser marking forlogo, numbers, qr code on metal clutch.dragon pattern on stainless steel plate.scale on stainless steel pipe.car information on metal auto nameplatelogo, letters on aluminium alloy.Chinese characters on stainless steel vacuum cup.