Home / All / Support Details / What pre-sales and after-sales services do you provide, and how fast is fault response?
What pre-sales and after-sales services do you provide, and how fast is fault response?
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
| Stage | Service |
|---|---|
| Before purchase | Free lighting design and product selection support |
| Installation | Configuration guidance and remote assistance |
| After sales | Remote technical support and video debugging |
| Maintenance | Equipment calibration and firmware upgrades |
| Fault response | Diagnosis 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.
Are you looking for a reliable manufacturer?
We can quickly provide customers with market analysis, technical support and customized services.Contact Person

- 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


