Cooltron’s 400W SMD High Bay Light Cold Forged Heatsink features a unique bio-inspired fish-scale and shark-fin 3D structure that increases surface area, generates micro-vortices, and significantly enhances convective heat transfer.
- Flexible Installation
Maintains high efficiency even at non-vertical angles, giving greater flexibility in lighting fixture design.
- Superior Thermal Conductivity
AL1070 cold-forged heatsinks (≥99.7% pure aluminum, up to 240 W/m·K) outperform extrusion and die-casting, delivering outstanding heat dissipation for high power LED lighting.
- Longer LED Lifespan
Faster PCB temperature stabilization (20–25 minutes) reduces heat buildup, prevents light decay, and prolongs product lifetime.
- Compact & Lightweight
High thermal efficiency enables smaller, lighter designs that lower production and shipping costs.
- Advanced Surface Protection
Electrophoretic (e-coating) finish ensures exceptional corrosion resistance in harsh environments, superior to plating, powder coating, or anodizing.
- Versatile Applications
Perfect for grow lights, high/low bay lights, flood lights, and other LED
400W Heat Sink Dimensions

Temperature Rise Curve

Heat Dissipation Simulation
Simulation under SMD Chip with Rotation 45° with sealed glass cover and 25 ℃ ambient temperature
Power =400W Ta=25 Tpcb=85.5℃ △T=60.5℃ Rpcb-a=0.151℃/W


With its innovative fish-scale fin design for superior cooling and unique tilt-mounting capability, this heatsink delivers unmatched flexibility, reliability, and design freedom beyond traditional vertical setups.

Product Information
- Model Number: DG332-400-A01
- Dimension (mm): 332*257*88
- Cooling Surface(mm²): 913,966.6
- Cooling Performance (lm): 36,000~48,000
- Thermal Resistance(°C/W): 0.12~0.22
- Dissipated Power (W): 300W~400W
- Weight: 3.8 kgs/8.38 lbs
- Material: AL1070 Aluminum
- Surface treatment options: Anodized Black or clear; Electrophoresis Black
Temperature Rise Curve

Heat Dissipation Simulation
Simulation under SMD Chip with Sealed Glass Cover
Power =400W Ta=25 Tpcb=81℃ △T=56℃ Rpcb-a=0.2℃/W


Applications
A great variety of applications in Grow Light, High/Low Bay Light, Flood Light and more.


###