THIS IS A LED BULB FOR KAVO AND KAVO STYLE KL 700 SERIES,MOTORS, INCLUDING KL700,AND KL701 , ELECTRIC MOTORS, IT IS POLARITY SENSITIVE. THIS BULB IS MADE FOR KAVO AND KAVO STYLE ELECTRIC MOTORS, IT PRODUCES A BRIGHTER WHITE LIGHT SIMILAR TO HID HEADLAMPS FOR CARS, THIS BULB RUNS COOLER THAN HALOGEN BULBS AND LAST MORE THAN 10 TIMES LONGER. CAN LAST OVER TEN YEARS DEPENDING ON USE. PAYS FOR ITSELF IN THE LONG RUN. LISTING IS FOR BULB ONLY.  FREE ESTIMATES ON ALL REPAIRS,