It's the same bulbs I put in my L2501. There ARE very very faint stamping numbers on the original bulb base, or you can contact your dealer for a bulb number if necessary. Go to Amazon, or Ebay or wherever and enter the bulb number and "LED Replacement". Thats what I did and it worked perfectly. There were many to fit my application, (I changed the tail light and blinker bulbs to LED too), but one set was much better than the other. The expensive ones were only so-so......the $10 set were like.."Holy defection result!! Woo-hoo look at that light output!" So the old adage of you get what you pay for isn't always in effect. The cheaper bulbs were MUCH better.