T20 7440 (WY21W) LED Indicator Bulb - Pair FEATURES No hyper flashing (No resistors required) 24x Super bright, Amber 2020 LED's Non-polarity Fan cooling - Enables continual operation for over 1hour Anti-glare cover Plug and Play, simple installation V2.0 is here! We've made a lot of changes to our new Indicator bulbs. Not only is the CANBUS much stronger, we've incorporated an active cooling fan within each bulb. This enables the bulbs to be used continuously for over an hour without overheating (and hyper flashing). Lastly, we took the feedback from our past customers, and greatly reduced the glare from these bulbs by adding a anti-glare, frosted cover. The Spectr EVISION T20 Indicator LED has been designed to greatly improve visibility to surrounding drivers. CANBUS compatible with high resistance means no hyper flashing without the use of resistors for 95% of cars. What's Included 2x T20 Bulb Bulb Cross Reference 7441, 992, 7440, 7440ST, 7440AL, 7440LL, 7440A