Dimmable modern pendant crafted of steel, aluminum, and glass Poul Henningsen developed the PH 5 in 1958 in response to constant changes in the shape and size of incandescent bulbs, creating a lamp that could be used with any light source. The iconic design is based on the same principles as Henningsen's threeshade system, which ensures that the light is soft, pleasant, and completely glarefree, making it the perfect dining room table lamp. The fixture provides a comfortable, glarefree light based on the principle of Poul Henningsen's reflective threeshade system, which directs the majority of the light downward. It emits a lateral light as well as illuminating itself, providing a soft radiance from within its core. The lower shade is fitted with a frosted glass diffuser to ensure that the downwardly directed light is 100% glarefree. Uses one 22watt type A bulb Delivered lumens: 156 142 Efficacy: 26.0 lm/w 23.7 lm/w Approx. 19.5"Dia x 10.5"T Cord length: 10 ft. UL listed Professional installation is recommended Spot clean, wipe clean Made in USA Weight, 4.8 lbs Boxed weight, approximately 5.8lbs