The Zoo Med blue daylight bulb is the one I use, and I love it. Gives off an appealing light, and it provides UVA (not UVB!), so that is always a bonus. I haven't had any burn out on me so far and it's been a couple months. Just make sure your fixture can handle the desired wattage (I generally use 60W). Also these bulbs are fragile, so that means bumping them can cause the filament to break, same goes for power outages.