UV-A, UV-B, or UV-C Light Oven with adjustable shelf height and uniform coverage SPDIUV's variable intensity UV curing lab chamber provides you with uniform ultraviolet light exposure throughout the entire 16.5" x 20" adjustable shelf. Features: User-friendly standalone UV lab testing enclosure with adjustable 16.5" by 20" specimen shelf (3" to 10" range of adjustment from specimen shelf distance to lamp output) to provide intensity variation The standard in UV Emitting Dosage Control: option of low pressure UVA, UVB and UVC lamps System status indicator lamps with ready signal & safety interlock Includes Electronically Brightened UV Reflector designed to provide 98% reflectivity, ensuring maximum UV energy delivery Programmable Start Timer with Auto Shut off feature for cycle repeatability. Programmable UV Dosage Control: On/Off timer is indicated in minutes and seconds Nitrogen Purge option seals the enclosure and adds 1/4 NPT filling, removing speed valves so that the unit can be hooked up to your lab's nitrogen lines Nitrogen Purge ensures all photoreactions occur in a nearly inert environment using nitrogen purging Forward and Rear Doors equipped with UV-filtered viewing glass for safe subject/cycle observation Uses standard 110 volt power input Made in the USA Any questions about his item, please feel free to call us at 1(800) 977-7292 or email us at [email protected]! Specifications: UV Coverage Area: 15" x 19" Dosage Range: 0 to 100 J/cm² over 60 minutes Specimen Distance from Light Source: Adjustable from 3 to 10 inches Input Power Requirements: 110V-60Hz or 220V-50Hz Output Lamp Choices: Each chamber comes with a set of bulbs of your choice included. However, if you would like to purchase additional sets, you are able to at the links below: UVA: 320-400nm - Set of 8 UV-A Bulbs UVB: 290-320nm - Set of 8 UV-B Bulbs UVC: 100-290nm - Set of 8 UV-C Bulbs UV-A Bulbs: rated for 1,000 hours. UV-A intensity drops 30% after 500 hours and 40% after 1000 hours. We recommend biyearly replacement if the system is being used regularly. UV-B Bulbs: Rated for 1,000 hours. UV-B intensity drops 20% after that point. We recommend yearly replacement if the system is being used regularly. UV-C Bulbs: Rated for 9,000 hours. UV-C intensity drops 20% after that point. We generally recommend biyearly replacement if the system is being used regularly. Technical Data Sheet: User Manual: Warning: Ultraviolet UV-A, UV-B and UV-C light is harmful to your eyes and skin. Use proper safety gear.