The Brief
A provincial government in Pampanga needed to upgrade lighting on a 7 km stretch of two-lane provincial road that ran through several residential barangays. The road had never had any street lighting — grid extension was estimated at USD 280,000, well above the lighting budget.
Solar was the obvious answer, but the brief was strict:
- Minimum 5 days of autonomous operation (monsoon season June-November)
- 8 m hot-dip galvanized poles
- Single-fixture design — the installation team was 8 local electricians, not specialized solar contractors
- Delivery within 10 weeks of order
Our Solution
We proposed the TR408 100W all-in-one with three modifications to the standard product:
- Battery sized up to 80Ah for the 5-day autonomy requirement
- Anti-corrosion salt-spray coating for the coastal proximity
- Pre-drilled pole-top bracket matched to the local supplier’s pole OD
Numbers
- 280 units delivered in two 40-foot HQ containers
- 9 weeks from PO to final commissioning (1 week ahead of schedule)
- Zero returns in the first 18 months of operation
- Average measured illumination on the road surface: 19 lux (spec called for 15 lux)
What Made the Project Work
- Single point of contact. One project manager from order to commissioning.
- Pre-shipment video inspection. Each unit was filmed running through a 48-hour burn-in test before packing.
- On-site supervisor for week 1. Our engineer flew in for the first week of installation to train the local team.
- A 5% spare-parts kit. 14 spare units and a kit of replacement batteries, LED modules, and brackets, so the maintenance team could keep the road lit for the first two years without waiting on international shipping.
Client Feedback
“We were skeptical of solar at this scale, but the Xiuben team walked us through every step. The road has been lit continuously for 18 months now, including through three typhoons. We are specifying the TR408 on the next four provincial projects.”
— Provincial Engineering Office
