DUAL LED Heat Sinks with Fan Attachment Wakefield-Vette DUAL LED Heat Sinks with Fan Attachment are versatile and designed to fit users' applications, whether they require active or passive solutions. Each DUAL LED Heat Sink features a built-in attachment that allows users to add a standard silent fan using four screws. Adding a fan to these Wakefield-Vette heat sinks offers up to five times better thermal resistance and a wattage rating of up to 700W.