Can I use both a UTH and a lamp?

[Bogertophis]

Thank you so much for your advice! I think I am going to at least try using a lamp with the heat pad but if it doesn't work I will just use the heat pad. What wattage lamp would you(or anybody else reading this too haha) recommend for a 20l glass terrarium with a heat pad? And what temperature should I set the UTH and lamp to?

Really cannot advise you...every situation is different...if you insulate your tank it will keep in more (UTH) heat that rises into the tank. I have NO idea how warm or cool your room/house is either...it makes a big difference. If you keep the room/house warmer, you may only need UTH, but since BPs do need warmer temps. than many other kinds of snakes, you'll probably need both. This may also change by the season...you might get by with only UTH in summer, but also need overhead heat in winter...see?

You need to TRY it out first for safety & proper temps. (take accurate temp. readings) before you get a snake. Leave yourself time to order or shop for any additional equipment that you might find necessary. It's important that all heat sources are regulated, but also, you want to take actual readings in the tank over the UTH (etc), not just rely on what a thermostat is set to. What matters is that your snake has access to a warm end of enclosure that's about 88-89*, and a cool end of enclosure that's about 78-80*, & that the warmest part of the cage is not too hot. BPs often don't sense it's too hot until they are injured...maybe because they crave higher temps & they're a heavier-bodied snake, so it takes a while for their whole body to reach the same temperature? I just know that it's a problem that you really want to avoid.