Features: 1. Voltage working:DC12V-24V ,Working Tempetature:-40°c-60°c, Standard:CE,ROHS 2. Cross Reference: T10 168 194 147 152 158 159 161 W5W 175 184 192 193 259 280 285 447 464 555 558 585 655 656 657 1250 1251 1252 2450 2652 2921 2825 921 906 579 If you're not sure about compatability, please feel free to contact us. 3. Application: Tail lights, Turn signal light, Corner light, Parking light,Side marker and Backup lights, Long service life,high brightness and low power consumption SMD LED bulb for Car Side Door Courtesy Lights, also Common use for Car, Truck,Interior (Map, Dome, Trunk...) Light, ect. Motorcycle, Boat, RV, Trailer, turn signals, parking lights. 4. If it doesn't light up, just flip it 180 degrees then it should light up.Easy Installation, Low Power Consumption, Low Heat Generation,Shockproof (High Shock / Vibration Resistant),Fast active,Eco-Label, Major Power Savings. Description: Size: 24.5mm*9.8mm Color: Pure white 5500K, Color Temperature: 5500K Voltage: DC 12V LED QTY: 1 LED LED type: 3030 SMD Lumens: 360lm Note:nonpolarity Item name: T10 LED Lights , W5W Led Lamps , 194 LED Light , 168 Led Lamp, 501 Led Bulbs Package include: 2 x T10 3030 LED bulb