{"product_id":"501214","title":"Bulb P21\/5W BAY15d 21\/5W 12V","description":"\u003cp\u003e\u003cstrong\u003eP21\/5W BAY15d 21\/5w 12V BOSMA bulb\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eVERY COMMON BULB FOR TAIL LIGHT - BRAKE LIGHT\u003c\/p\u003e\n\n\u003ch2\u003eP21\/5W Bulb\u003c\/h2\u003e\n\n\u003cp\u003eBase: BAY15d\u003cbr\u003e\nType: P21\/5W\u003cbr\u003e\nPower: 21\/5W\u003cbr\u003e\nLumen: 440\/35 lm\u003cbr\u003e\nVoltage: 12V\u003cbr\u003e\nSpecifics: 2 offset pins - 15mm base - 2 contacts\u003c\/p\u003e\n\n\u003cp\u003eReferences from other brands:\u003cbr\u003e\nPhilips: 12499\u003cbr\u003e\nOsram: 7528\u003cbr\u003e\nGE: 1077\u003cbr\u003e\nRing: R380\u003c\/p\u003e\n\n\u003ch2 class=\"western\"\u003eP21\/5w bulb\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eThis is the most common bulb for tail and brake lights. It is a double filament bulb. One 21W filament for the brake light and one 5W filament for the tail light. It has a BAY15d base. This is a base with a 15mm diameter and 2 pins that are offset (side view).\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003cimg alt=\"ampoule_BAY15d_215w_12V_P215W_1_CULOT_ml\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0930\/1678\/5277\/files\/ampoule_BAY15d_215w_12V_P215W_1_CULOT_ml.jpg?v=1768877367\" style=\"width: 137px; height: 150px;\"\u003e    \u003cimg alt=\"ampoule_BAY15d_215w_12V_P215W_2_CULOT_ml\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0930\/1678\/5277\/files\/ampoule_BAY15d_215w_12V_P215W_2_CULOT_ml.jpg?v=1768877371\" style=\"width: 165px; height: 150px;\"\u003e\u003c\/p\u003e\n\n\u003ch2 class=\"western\"\u003eP21\/5w Bay15d\u003c\/h2\u003e\n\n\u003cp\u003eThe base of this bulb will not fit into the turn signal socket. Most turn signals use BA15s bulbs, also known as \u003ca data-link-type=\"tree\" data-type=\"linkpicker\" href=\"?ObjectPath=\/Shops\/78508544\/Products\/501210\"\u003eP21w bulbs\u003c\/a\u003e. This is a bulb with symmetrical pins and only one filament. Bay15d bulbs always have double filaments with offset pins. The offset pins prevent incorrect installation of a double filament bulb where a single filament bulb should be, and vice versa.\u003c\/p\u003e\n\n\u003ch2 class=\"western\"\u003eP21\/5w osram\u003c\/h2\u003e\n\n\u003cp\u003eThe P21\/5w reference from Bosma with reference number 501214 is interchangeable with an Osram P21\/5w bulb, number 7528.\u003c\/p\u003e\n\n\u003ch2 class=\"western\"\u003eP21\/5w Philips\u003c\/h2\u003e\n\n\u003cp\u003eP21\/5w bulbs are all identical in terms of dimensions, base type, double filaments, etc. The real difference between brands is quality. Bosma bulbs meet the same quality requirements as Philips bulbs. You can swap a Philips P21\/5w bulb with reference: 12499 for a Bosma P21\/5w bulb (501214).\u003c\/p\u003e\n\n\u003ch2 class=\"western\"\u003eP21W - P21\/5W difference\u003c\/h2\u003e\n\n\u003cp\u003eThe difference between these 2 types of bulbs lies in the pins and the filaments. A P21w BA15s bulb is a bulb with symmetrical pins. A P21\/5w bulb has pins that are offset in one direction (side view).\u003c\/p\u003e\n\n\u003cp\u003eThe second difference is that the P21w is a single filament 21W bulb for turn signals, rear fog lights, and 3rd brake light. The P21\/5w has 2 filaments; one for the tail light (5W) and one for the brake light (21W). This is the most commonly used bulb for tail\/brake lights.\u003c\/p\u003e\n\n\u003ch2 class=\"western\"\u003eP21\/4w or p21\/5w?\u003c\/h2\u003e\n\n\u003cp\u003eBoth bulbs are used for tail\/brake lights. To properly identify these bulbs:\u003c\/p\u003e\n\n\u003cul\u003e\n\t\u003cli\u003e\n\t\u003cp\u003eLook at the wattage marked on the bulb. It must match the 2 numbers.\u003c\/p\u003e\n\t\u003c\/li\u003e\n\t\u003cli\u003e\n\t\u003cp\u003eIs the wattage no longer visible? The difference between the 2 bulbs is in the pins:\u003c\/p\u003e\n\t\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eThe P21\/4w has pins offset in both directions, while the P21\/5w only has pins offset in the side view. You can find a list of cars with \u003ca data-link-type=\"tree\" data-type=\"linkpicker\" href=\"?ObjectPath=\/Shops\/78508544\/Products\/501291\"\u003eP21\/4w HERE\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003cp class=\"western\"\u003eFor our entire range of \u003ca data-link-type=\"tree\" data-type=\"linkpicker\" href=\"?ObjectPath=\/Shops\/78508544\/Categories\/Voiture\/Ampoules_12_Volts%5B1%5D\/BAY15D\"\u003eP21\/5W bulbs, click HERE.\u003c\/a\u003e\u003c\/p\u003e\n\n\u003cp\u003e \u003c\/p\u003e\n\n\u003cp\u003e\n\u003cstyle type=\"text\/css\"\u003eP { margin-bottom: 0.21cm }H2 { margin-bottom: 0.21cm }H2.ctl { font-family: \"Arial Unicode MS\" }\n\u003c\/style\u003e\n\u003c\/p\u003e","brand":"Ampoules Pharos","offers":[{"title":"Default Title","offer_id":57718408380797,"sku":"501214","price":1.15,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0930\/1678\/5277\/files\/Ampoule_P21_5W_12V_21-5W_Bosma_111adf8f-0e83-4a72-93c4-2da8c79a85e1.jpg?v=1768877386","url":"https:\/\/pharos-boutique.fr\/en\/products\/501214","provider":"Pharos","version":"1.0","type":"link"}