For BMW 3 Series E91 H7 Super White 50w LED Headlight Bulbs 501 Upgrade Set
Wedge bulb type: 501 (W5W). 4 x High Power LED Headlights Bulbs+ 2 x Wedge bulb 501 (W5W). Low Power Consumption than Halogen bulb, Energy Saving. Number of Bulbs: 2. Heat Dissipation Theory: Heat Pipe Technology + A380 Aluminum Heatsink.