4pcs 12mm Silver Heat Sink Heatsink Holder for 12mm Blue/Green/Red/IR Laser Modules

4pcs 12mm Silver Heat Sink Heatsink Holder for Blue/Green/Red/IR Laser Modules Parameters Diameter: 22mm(Width)x27mm(Height)x45mm(Length) Suitable for: 12mm Laser Module Material: Aluminium Features This is a high quality aluminum heatsink/heat sink holder for 12mm laser modules like 12mm red, green and IR laser modules. The heatsink holder can help to cool the laser to prolong the working time of laser mdoules. It is a laser module holder and mount to fix the module. The Inner diameter of this one is 12.3mm, it has one bolt on the top to fix the laser. Package 4pcs Silver Cooling Heatsink Mount Holder for 12mm Diameter Diode Lasers Module