I got this bulb from wal mart and was wondering if it was safe for my adult male
What kind of bulb? Is it a pet bulb for reptiles, or just a normal bulb from the house department?
Do you know what the wattage is? Do you have a heat lamp already, what kind of bulbs does it take?
I would probably not advise buying reptile bulbs at walmart, but that doesn't mean its not possible.
Iiiii don't know whether the picture in the OP is actually broken, or just not showing up for me (all I see is the broken image icon, if it's an issue on my end, apologies!), but in case it is broken for everyone ― Here's a tut on image uploading, if that's the issue! I suppose the image contained information about the bulb in question?