This 2pack UVB UVA Reptile Heat Lamp Bulb/Light delivers a reliable heat and UVB/UVA source for reptile and amphibian enclosures. Each 50W bulb is designed to provide warmth for basking and a UVB/UVA spectrum to support health and activity in a variety of species. Key benefits Supports healthy metabolism and growth: UVB/UVA exposure helps vitamin D3 synthesis and calcium absorption, contributing to strong bones and overall well being. Promotes natural behavior and feeding: The UVB/UVA spectrum encourages normal activity levels and appetite in basking reptiles. Consistent heat for basking: 50W output creates a dedicated warm spot for thermoregulation and digestion. Value and convenience: Included as a 2pack so you have replacements on hand and can maintain a stable lighting schedule without downtime. Broad applicability: Suitable for reptiles, amphibians, turtles, lizards, tortoises, and bearded dragons in terrarium setups. Key attributes Functionality: Reptile heat lamp bulb with UVB and UVA emission to support health and behavior. Compatibility: Designed for use in reptile enclosures requiring a heat and UV light source. Size and power: 50W per bulb; sold as a 2pack. Application: Ideal for basking areas and daytime lighting in terrariums housing reptiles and amphibians. Use cases Bearded dragon basking area: Install above the basking ledge to provide heat and UVB during the day, promoting healthy metabolism and activity. Turtle or tortoise enclosure: Create a daytime warm zone with UVB to support digestion, shell health, and daily behavior. Amphibian terrarium: Provide a combined heat and UVB/UVA source to support growth, activity, and well being. Notes Use as part of a balanced daynight lighting cycle for your reptile habitat. bulbs as part of regular enclosure maintenance to ensure consistent UVB/UVA output.