Mikey;
Are you a professional ?
Then the answer is NO.
First of all there is ~$2 worth of parts in that light.
About 60 cents for 21 reject LED's at incorrect wavelength.
Since they are factory rejects, some will fail in the 1st month of use.
(biggest problem in very low cost lights)
There are no electronics at that price level, so they are unregulated with new non-rechargeable batteries.
There are a few low cost UV lights, but they will use quality high power UV LEDs.
We still sell one ($40), but it must be used in dark lighting,
so it is of limited use to point out problem areas to customers.
It is better to purchase a higher power UV light to allow customers to see the urine deposits.
Only then, can you charge the proper amount for the scope of the work required.
http://www3.cobbcarpet.com/zen3/index.php?main_page=product_info&cPath=69&products_id=1384
Larry
P.S. Here is one blue laser from my collection: