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What pre-sales and after-sales services do you provide, and how fast is fault response?

Update Time:2026/9/24

Direct answerEvery project is handled one to one. Free lighting design is available before purchase, and after-sales support covers remote technical assistance, video debugging, calibration and firmware upgrades.

Service Coverage

StageService
Before purchaseFree lighting design and product selection support
InstallationConfiguration guidance and remote assistance
After salesRemote technical support and video debugging
MaintenanceEquipment calibration and firmware upgrades
Fault responseDiagnosis committed within 48 hours

How Remote Support Works in Practice

  • A single named contact follows the project from enquiry to after-sales
  • Video debugging lets an engineer see the fault and guide the local technician
  • Firmware upgrades are supplied free of charge during the product life
  • Calibration guidance keeps output and colour consistent over time

Most service issues are resolved remotely, so keeping control and network access available speeds up the response considerably.

Contact DarkTone for pre-sales design support
Define Tone in Dark
Contact Person
Lumi Deng
Full Name:
Lumi Deng
Tel:

+86 13414288613

Email:
sales1@darktone.com
WhatsApp:
8613414288613
Address:
Room B441, 7/F, No.13-33 Jinshi 3rd Road, Dayuan Sub-district, Baiyun District, Guangzhou City, Guangdong Province, P.R.China