Available from Keeler Instruments
LED illumination — first indirect to use LED illumination. Lightweight (less than 500 grams); easy to use, can be worn over glasses; PD range 48 mm-76 mm.
Type - exclusive sport frame, available in red, light blue dark blue, black
Spot Size - large
Filters - red-free; cobalt blue
Power Source - lithium ion battery
Portbility - yes, lithium ion battery