How to replace a dream lite led bulb<br>Prepare. Arrange your tools on a clean flat surface and have all your tools at hand. Make sure you have enough space to move around as well as keeping your soldering iron at a safe distance while not in use.
Your tools need to be clean to replace a dream lite led bulb
The context just says lay your tools on a clean flat surface. It doesn't say whether or not the tools themselves need to be clean. The system likely mistook saying you need a clean surface for clean tools. 