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Silver aluminum finned heatsink block 300 140 20mm

Keenso

Keenso 2 in 1 Accessory 300 140 20MM

SKU CH-N3A3-JHRXD

Aluminium heatsink measuring 300×140×20 mm cools up to eight 3 W or twenty 1 W LEDs and weighs 570 g

  • Premium aluminum conducts heat efficiently away from LEDs
  • Finned design maximises surface area for better air cooling
  • Prevents overheating to extend high-power LED lifespan
  • Lightweight 570 g build suits weight-sensitive fixtures
  • Supports 8 × 3 W or 20 × 1 W LED configurations

Aluminium LED Heat Sink 300x140x20MM

This aluminium heat sink measures 300 by 140 by 20 millimetres and is built for high-power LED lighting. It suits DIY builders, aquarium keepers and anyone fitting household LED fixtures that need reliable passive cooling. The finned profile increases surface area so heat moves away from the LEDs without a fan. Weighing about 570 grams, it adds minimal load to mounting surfaces.

Passive Cooling Limits for LED Arrays

The cooler handles up to eight 3-watt LEDs or twenty 1-watt LEDs in a single array. Beyond that total power the aluminium cannot radiate heat fast enough and junction temperatures will rise. There is no fan or liquid circuit, so airflow around the fins must remain unobstructed. Dust build-up on the fins will further reduce the thermal headroom available.

Check Mounting and Power Before Ordering

Verify that your LED module or COB footprint matches the 300 by 140 millimetre base and that mounting holes line up with your fixture. Confirm the combined wattage of your LEDs stays within the eight-by-3W or twenty-by-1W limits stated. Ensure the installation location allows free air movement across the fins and that the 570 gram weight is supported by the housing.

Highlights

  • Premium aluminum conducts heat efficiently away from LEDs
  • Finned design maximises surface area for better air cooling
  • Prevents overheating to extend high-power LED lifespan
  • Lightweight 570 g build suits weight-sensitive fixtures
  • Supports 8 × 3 W or 20 × 1 W LED configurations

Specifications

No published specifications for this item yet.

Questions about this item

Should I pick the 300 mm or the 140 mm length for my LED array?

The cooler measures 300 mm by 140 mm by 20 mm, so both dimensions are fixed; choose it when your mounting area fits that exact footprint.

What does the 570 g weight mean once the cooler is installed?

At about 570 g the unit adds minimal load, making it suitable for lightweight fixtures such as household high-power LED lamps or aquarium lighting systems.

How many LEDs can the finned aluminium block actually cool?

It is designed for up to 8 pieces of 3 W LEDs or 20 pieces of 1 W LEDs, providing enough surface area to keep those configurations at stable temperatures.

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