High Quality NEW!!! Material: Aviation aluminum alloy Lifespan: Over 30000 hours Light Source Type: LED Colour: Amber/Yellow Position: Rear Voltage: DC 12V Wattage: 21W/Bulb Ampere: 1.75A/Bulb Product Name: T20/7440/W21W/WY21W turn signal light bulbs LED Chip Type: 3030 SMD LED Chips QTY: 35Pcs Lighting Angle: 360 degree clear beam Operating Environment Temperature: -40℉ ~ 176 ℉/-40℃~80℃. EASY INSTALLATION - Plug & play, no need to cut wires. Fit into the same size socket perfectly & plug into the OEM sockets directly. EXCELLENT HEAT DISSIPATION - Aluminum plate inside which has excellent heat dissipation & high quality aluminum alloy outside. 10pcs holes on the body helps to speed up the cooling rate & stays durable. NOTE: These bulbs are TURN SIGNAL LIGHT bulbs but not reverse or brake light bulbs. Can work with most vehicles error free, but for some European vehicles equipped with CANBUS systems, may not light up or flicker when installed (it's not the quality problem), it may require to mount a decoder or Load Resistor to avoid the error code or blinking. Please flip the adapter & try again if it doesn't work when installed,because some cars use negative wire for power. Professional installation is recommended!!! Actual lighting may be different from the pictures due to the shooting environment & angle.