1156灯泡和p21W灯泡都是汽车转向灯。 1156是美规标称是12v，2CP , 相当于25W，p21W 没有别的区别 。 1156可以跟p21W互换 ， 美规中还有个1141，12V21CP，这三种都可以通用因为灯口，泡形都是一样的。

P21W，功率是21W，灯泡直径是26.5mm，总长是52.5mm，也可称为BA15S或1156。 做成的灯泡可称为球形灯泡。 常见使用车型如雨燕、标致206等。

10 PCS Car 1156 Turn Signal Light, P21W 1141 S25 Waterproof High Brightness Stable Filament Halogen Bulb, 12V 21W BA15S Single Contact Long Life Bulb Replacement, Universal for Cars (Amber)

2024年2月29日 · Buy UPXSXT 2Pcs PY21W 1156 7507 BAU15S LED Turn Signal Bulb, CANBUS Error Free Anti Hyper Flash Replacement Bulb 300% Super Bright Amber 30-SMD 25W 4000LM: Headlight Bulbs - Amazon.com FREE DELIVERY possible on eligible purchases

Discover the key differences between 1156 Bulbs, PY21W, and P21W for better automotive lighting safety and performance.

Available for purple / green / yellow / golden yellow / pink / white / red / ice blue / blue. 13 SMD, 20 SMD, 30 SMD Available >> Brightness, Up to You. 👉 Load resistor would be required for turn signal bulb replacement. Click me to browse our fantastic resistor. ↑ Green / Purple >> The most sold colors. 1. BA15S (1156) 2.

Enhanced brightness and reliable performance with constant current circuitry. Available color options: white, amber, red. Built-in CANBUS error canceller design. 2pc bulbs per package. Powerful, reliable, and compact.

2004年11月25日 · #7507s is what you need...The base pins on the #1156 are at 3 & 9 o'clock positions, while #7507s & PY21Ws are at 9 & 4.5 o'clock positions. I learned this the hard way in that I originally purchased the #1156s and had to shave down one post to make'em fit...It works, but I shoulda got the #7507s...