Beardies need a bright white light. Those get hot enough so you won't need a CHE. You want to have it as close to their natural habitat as you can get. I use halogen flood bulbs. You can buy those at Wal-Mart. Also if your house doesn't get below 65 at night it's fine. If it does then you want a low wattage CHE. Beardies like to cool down at night they sleep better.