You can use this with some limitations without logging in, but once you set up an account, you'll be able to:
Point your spectrometer at a light and click on the video above to choose a cross-section as shown below. (Learn more »)
Help selecting a cameraBegin capturing »
Offline use: To use this interface offline, load the offline capture tool by clicking here. Once the page loads, you'll be able to access that page even without internet access; it will be stored in your browser.
Label and annotate your spectrum so that you can find and analyze it later.
Good tagging can be extremely helpful; if you are doing a set of tests, consider tagging them all with a consistent tag name like "oliveoil" or "detergent".