I've got 250 watt ceramics in mine as I struggled to get the temps right with a 150. If you struggle to find a big enough guard for them then Reptiles-Inc does them & they're quality, just send him a pm on the dark side.
0.2.0 Cats (Spud & Phoebe) RIP Stevie fat man 1.1.0 Royals (Syd & Sofia) 2.2.3 Corns (Hogan, Shaggy, Sparkle, Tango, Fred, Haribo & Go Faster) 0.0.1 Columbian Rainbow Boa (Escobar) 1.1.0 Variable King Snakes (Lancelot & Guinaverre) 0.0.20 Fish