I did that one time by converting a security light from the Depot. What a lot of work and expense to make a light. Also, creating a good reflector with sheet metal is not as easy as it might seem. Honestly, your much better off buying a grow light and I think that you will be happier. Get a gift card and send it to somebody elses address if you feel the need. Or have a non-growing friend get you a PO box at a mail type store in their name.