I. Project Background

Industry Pain Points

1. Children’s Vision Risks: 60% of young piano learners experience eye strain; traditional lamps fail to cover all 88 keys
2. Poor Lighting Conditions: Conventional LEDs with CRI<80 and excessive blue light peaks (measured 1.2W/m²)
3. Ergonomic Issues: Fixed lighting unable to adapt to children of different heights

Client Requirements
A leading musical instrument lighting brand sought to develop a smart piano lamp with:

• Full-spectrum lighting (CRI≥95, 4000K±5% color temperature)
• Intelligent time management (practice/rest reminders)
• Safety design (anti-tip, 360° adjustable)

II. KKPCB Technical Solution

1. Optical System Design

• Full-Spectrum Light Module
  • Custom 56-LED array (Patent: KKP2023-Opt07)
  • 98% spectral continuity (35% improvement vs standard LEDs)
  • Blue light peak controlled at 0.6W/m² (IEC62471 Exempt Group)
• Optical Diffusion Structure
  • 38cm curved shade + nano-level light guide plate (89% haze)
  “The even illumination covers both sheet music and keys perfectly.”

2. Smart Control System

• Main Control PCB
  • KKPCB-STM32F103 core board (EMC Class B certified)
  • Dual-mode Wi-Fi/BLE (100% pairing success rate)
• Key Functions

• Focused PracticeSegmented PracticeSleep ModeAPP CommandMode Selection60-min timer + light reminder15-min interval alerts15-min gradual dimming

3. Safety Structure

• 3.2kg zinc alloy base (stable at <8° tilt)
• Aerospace-grade aluminum pole (5kg load capacity)

III. Performance Data

Parameter	Industry Standard	Our Product
Illuminance Uniformity	≥0.6	0.83
CRI	≥80	97
Blue Light Hazard	RG1	RG0
Color Temp Stability	±10%	±3%
Tilt Resistance	5°	8.2°

IV. Client Benefits

Market Performance

• Sold 12,000 units within 3 months
• Ranked TOP3 in Tmall’s “Eye-Protection Piano Lamps” category (2024 Q1)

User Feedback

• 72% reduction in eye strain complaints
• 81% APP user retention rate (industry avg: 45%)

V. KKPCB Value Proposition

1. Optical-Electronics-Mechanical Integration
   • End-to-end solution from LED selection to PCB layout
2. Rapid Production
   • 30-day turnaround from design to prototype
3. Cost Efficiency
   • 18% lower BOM cost vs competitors

Case ID: KKPCB-HCL-2024-09
Contact: [email protected]

“KKPCB’s full-spectrum solution helped us build a technical moat in eye protection – this is true differentiated innovation.”
— Client Product Director