Methods and apparatus are provided for mounting and aligning a modular lamp controller. A flame-proof expansion piece preventing the radiant heat device from being damaged by the flame is installed between the radiant heat device and the lamp shade body andor in the lamp shade body andor in the radiant heat device. The ambient light is transmitted or directed from a reflective surface such as a concave curved region for passively illuminating the optical fiber. The person moves her pelvis off the support surface subject to resistance from the resistance devices. The retaining element accommodates two contact tubes. The sealing member for water cutoff is long in length and at least a part thereof is curved when used.