Usage Tips:4 Pack Reptile Uvb Uva Heat Lamp Bulb For Truly Sun-like Bright Heat For , Amphibian(100 W) Truly sun-like bright naturalistic light for terrariums. Effective UVA and UVB lamps promote calcium deposition and metabolism, strengthen bones, prevent , release 5000k warm light, avoid and strong light stimulation. Better results, diameter flux and conversion output, increase the built-in reflector area by adding an inner reflective coating to efficiently increase the luminous flux and the heat reflectance inside the lamp, that is, to make the environment brighter and the same power heat output higher. Professional lamp construction creates a true flood-lamp effect, eliminate dangerous UV "hot-spots" common to other metal halide reptile lamps. Suitable for most , lizards, snakes, spiders, , etc. Those who like to sunbathe and need heat and UV. colour:White Material:Quartz glass size:12 x 8cm Package Contents: 4 x heating bulb Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.