Desk lamp as light

[koi]

Supports up to 75 watt bulb. Can i use this for my 5 gallon if i put in a 25 watt bulb?

[Mzungu]

Sure, you can.

[DiscusKid]

Yes you can actually I use a normal 6500k 26w CFL screw on bulb on my high tech 2.5g

[koi]

Thanks guys. Has anyone ever tried using potting soil and then putting gravel/sand over it?