In one aspect, a user-wearable illumination assembly includes eyeglass frames and a headlamp removably coupled to the eyeglass frames. It is difficult to adjust the amount of the water to be injected, however, since the temperature of the compressed gas at an intercooler outlet is actually higher than the saturation temperature. A slide member includes a cross-linked rubber body in which the rubber composition is cross-linked. A diagnostic feature may be provided to facilitate verifying proper operation of various aspects of a trial stimulator, such as electrode impedance analysis. To properly control the ONOFF-switch of the blue wavelength band or the red wavelength band, the transflective LCD device adopts a half wave plate and changes the optic axes of the polarizers and the retardation film. The second panel has a clamping end pivotally mounted on the platform.