21-PL LED Pilot Light Bulb(0)No Reviews yet $10.50 Quantity discounts available QuantityPrice SKU: 21-PL In Stock Available: 59 Quantity -+ Add to Cart Details LED Pilot light bulb.Commonly used in rotary switches p/n 21-440 and 21-540 (see below).Illuminates amber.Details Back DetailsLED Pilot light bulb.Commonly used in rotary switches p/n 21-440 and 21-540 (see below).Illuminates amber. Reviews 0 Back Ratings & ReviewsNo reviews availableBe the first to Write a Review