【7443 STROBE BULB WORKING MODE】: 7440/7441/7444/T20 Strobe LED brake light bulbs will flash 5 times (legally) at the beginning of braking, then turn to a solid red light, which enhances rear visibility and reduces the risk of rear-end collisions for cars, trucks, SUVs, RVs, etc. 【320% BRIGHTER THAN STOCK】: 7443 LED bulb in halogen-like design houses 60 precisely arranged 4014-SMD LED chips, emitting 360-degree high-lumen red light for enhanced braking visibility. 【TOP-QUALITY MATERIAL】: Aircraft-grade aluminum housing and circuit board provide highly effective heat dissipation. Built-in smart IC driver ensures constant current and eliminates radio interference. 【5 MINUTES EASY INSTALLATION】: Compact design matches OEM bulbs. Non-polarity design, compatible with US standard & CK sockets. Ideal replacement for your brake/tail/stop lights. Fits: 7443 7443A 7443NA 7443LL 7443ST 7443ULL 7443-SACK 7443-SCK 7443-SRCK 7440 7440A 7440NA 7440-SACK 7440-SCK 7440-SRCK 7440AL 7440LL 7440ST 7441 7444 7444LL 7444NA 7444NA 7442NALL 7442NALL 992 T20 W21W WY21W W21/5W (and more). 【IMPORTANT NOTICE】: For few vehicles, bulb flickering or error codes may occur - just install the 50W 6ohm load resistors to fix it. If unsure which bulb fits your vehicle, please check your owner's manual or contact us for help. IMPORTANT NOTICE!!!

▼We offer ONE YEAR WARRANTY for any quality problem with our products, no hassle on return or exchange.

▼Please check your vehicles owners manual or the original bulb to confirm the correct bulb size you need before placing the order.

▼Amazon filter system may not be 100% accurate or up to date. If you are not sure which bulb size that your vehicle requires, please google "Philips automotive bulb look-up."

PACKAGE INCLUDES

2 packs super bright 7443/7440 led strobe/flash bulbs.