since i bought the Exo Terra, small tall, i decided to go with their light dome, despite the fact that i had looked at a nice led light at Petsmart earlier. so i bought the low watt blue bulbs b/c my grays don't need much heat. they are so dim, they are a waste of money. i can't see anything. So i was at petsmart this morning and i saw the led light. i bought it. it is AMAZING. the day light lights my terrarium so nicely and the blue light will be awesome for night. now i have a Brand new Exo Terra dome and need to find a home for it. Wish i had gone with my first instinct and bought the led before wasting money on that. Ugh.