P21W, PY21W, P21/5W, are all commonly used car light bulb base, do you often confuse these? This article will help you to solve the confusion, so that you won't buy the wrong specification, only to find that you can't use it at home!
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Buy AMYWNTER BA15S 12V 1156 P21W led 1157 P21/5W S25 Car LED Turn Signal Auto Reverse Lamp Bulb 1056 BAU15S PY21W Amber Yellow 4W at Aliexpress for .
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OUSHI 1157 BAY15D Led Bulb, Canbus P21/5W 2057 2357 7528 Led Bulb Super Bright Replacement For Car Back Up Reverse Light Tail Light DRL Daytime Running Light, 6500K Xenon White (Pack
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P21W, PY21W, P21/5W |How do I choose the right LED Bulb size for my car? - Per-Accurate Inc.