Our newest product currently available in size of 20 gallons and 40 gallons (more sizes currently being designed and tested). Full glass sliding doors to avoid typical reptile scratches. Easy to assemble with just a screwdriver. 3 built-in light sockets with switches. Do not exceed 50 watts (in 20 gal) and 70 watts (in 40 gallons). Packaged dish for the convenience of shipping and storage. Dimensions of 20 gallons in inches: 11.8l x 29.5w x 13.7h 14.4lbs. Dimensions of 40 gallons in inches: 18l x 36w x 6:31 p.