These are 20mm Carclo optics that work with a range on Nichia 219/319 and and other 3535 footprint LEDs.
Please note: in order to fit the optic in a Delta light you may need to use a sharp kinfe and trim off the small "runner" that is an artifact of the injection molding process (see photo #2). It is only important that this runner not stick out beyond the outside diameter of the optic. This is to prevent it from getting jammed inside the pill.
AVAILABLE IN 3 FLAVORS:
- Narrow: 26 Degree beam angle
- Medium: 33 Degree beam angle
- Wide: 46 Degree beam angle
It's easy to replace the optic in your Delta if you want to try out different beam patterns. Most people choose the spot optic for longer range. I personally use the wide optic to give me broad and even illumination for indoor and outdoor use at close range. Flashlight nerds sometimes refer to this as a "wall of light." If you can't choose...medium is a good option ;)
materialInjection molded optical grade PMMA
beam anglesNarrow: 26 degrees
Medium: 33 degrees
Wide: 46 degrees
where it's made