PH 4 1/2 - 4 Glass Pendant by Louis Poulsen in Opal, Chrome finish. The PH 3/2 Pendant, designed by Poul Henningsen, is based on the principle of a reflective three shade system, which directs the majority of the light downwards. The shades are made of hand-blown opal three layer glass, which is glossy on top and sandblasted matte on the underside, giving a soft light distribution. Available in Opal glass with a Chrome finish.