Bulbrite brand MR16 halogen flood. 50 Watts for more power and light. 24 volts for low voltage systems. Low voltage means a smaller filament, for greater optical control.
Halogen lights provide brighter, whiter light than incandescents, while maintaining outstanding color rendering
Flood means 38º beam spread and a wider beam of light. Lamp can be closer and still light the area effectively
Dichroic reflector reflects visible light out the front while letting heat escape out the back, resulting in a cool beam of light
Double check for correct voltage. 24 volt systems are generally less common than 12 volt.
Glass lens - enclosed fixture not necessary.