Specification grade head with precision internal gearing mechanisms that allow for hot aiming and are self-locking. Rotates 360° and pivots 0° to 90°. Up to two lenses or louvers (sold separately) are held captive inside the lamp cartridge which includes an integral glare reducing snoot. Lamp cartridge and lens orientation adjust 180°. Lamp cartridge is keyed to maintain accurate focus during relamping. All functionality can be fine-tuned using a phillips or flat head screwdriver and with the guide of accompanying markings. Low-voltage, MR16 lamp of up to 50 watts (not included).