Check the listing for details. 20 Style A Mini Bulb Flasher Flashers Christmas Tree Lights Replacement 2.5v .42. Condition: New. Listed at 15.99 USD. 20 style A 2.5v .425 watt mini light bulb flashers to make your lights flash. You must match the flashers to your replacement bulb voltage and wattage or they will not work. These flashers work in light strings that use a 2.5 volt 0.425 Watt Bulbs. Using the incorrect flasher bulb will cause it to burn out quickly or not work. You can remove these from the base to use on any string with the correct voltage and wattage. Please check pictures for a measurement diagram for the style A base. Incandescent indoor/outdoor bulbs. These are commonly used on 100 and 50 light strings. Will not work for LED bulbs, these are incandescent mini lights. I also have a slower flash bulb listed. Video:https://youtu.be/C_QlAzvG1nUIn the above video this is the faster flasher. JL Missouri Parts has been selling on Ebay for well over a decade. We are constantly expanding the line of parts we offer. We are a small family run business. NOTICE: We ship every weekday, expect a business day before your item is shipped. Everything is shipped with Tracking. If you have a problem with your purchase please contact us and we will do our best to resolve it. I use calculated shipping, so if you are interested in multiple items I am selling add them to your cart and the shipping will be combined by Ebay’s system. International Buyers: Do to the high cost of shipping, I cannot accept returns. Please be sure you know what you are buying. Understand that I cannot control shipping after it leaves my possession, and it can take months to get to you.4-22 1000/995 R11-22 1000