damn - i've only been running mine for 5 hours in the middle of the day... i'm gonna change it to at least 10...
two of those 24" uv10 bulbs is a lot of uv... dont look at those, seriously.. i have mine rigged up to a door switch so when i open the door they go off
i put in an 18" fluoro and 2 of the 23w CFLs in reflectors.