Item Specifications:1. Base type: H4 2. LED quantity: 33 pcs 3. LED type: 5630 LENS 4. Colors available: white 5. Input voltage: DC 12v Item Function:1. Maintenance Free， Easy Installation;2. Shockproof (High Shock / Vibration Resistant.3. Built-in Current Limiting Resistors;4. Long life. The theoretical data is more than 100， 000 hours.5. Designed to work in negative ground vehicles;6. Low Power Consumption; Saving energy and environment protection. The energy of LED is 1/10 of the traditional halogen lamp， it can better protect the electron circuit and save oil.7. High Intensity;8. Eco-Label， Major Power Savings;9. Major Reduction in， Heat Generation;10One -Year Lamp Warranty.11. High ability of shock resistant; Brighter light; Low temperature.12. Super white lighting provides a high level of road safety at night driving.13. Fast active;14. Pure color with nice appearance.Item Characteristics:1. Long life: the product adopts constant current drive technology (is not a simple resistor capacitor step-down)， make the light bead is constant current， don't change with voltage fluctuation， the lamp bead can achieve the best effect， and long service life. 2. High brightness: due to the use of constant current drive， light bead can achieve the best light， high brightness. 3. The light color pure: unlike incandescent bulbs full frequency spectrum， the typical LED spectral narrow， light is very pure. 4. Low energy: 10 w leds is equivalent to 40 w energy-saving lamp brightness. 5. Reliable and durable: no tungsten wire， glass shell and so on easy to damage the parts， there is little possibility of abnormal scrap， maintenance cost is very low. 6. Safety: calorific value is very small， not very hot like tungsten filament bulbs， will not burn. 7. Green environmental protection: waste recycling， no pollution， is not like fluorescent lamp contains hg. 8. Have the effect of replace incandescent bulbs: now global cutoff， to ban incandescent bulbs， this LED bulbs to replace the incandescent light bulb. Package Includes:2pcs x H4 33SMD 5630 LED Bulbs