Hi all. I have expanded my collection over the last 12 months and my power bill has gone from $160 a quarter to $270. I have 8 pythons in a variety of enclosure and heat sources. First one Bay one and three 400x 1200 x 500 heated by 100 w globe. Cage $20, fitting $6.50 cable and plug approx $5. Bulbs $4.50 from masters Bay two same heating as above 840 x 1000 x 500. Second 2000x 1000x 1000 at widest depth (corner unit) heated by 2 100 w globes. third and fourth 1230x 440x 440 heated by heat matt under 400x400 ceramic tile 100w I think. 600x 400x 400 heated by 60w red globe. fifth 2000x 1840x 800. Heated by heat panel of unknown wattage. I'm thinking replacing the globes over time with heat panels or heat cord, maybe CHE's? Wondering what people would recommended?