<p><b>Alla Lighting D1/D2/D3/D4 LED Beam Conversion Kits-Perfect Replacement the HID bulb</b></p><p>Alla Lighting pursues to offer the best valuable guaranteed led light bulbs for the customers, this led Beam adopts the original reflection light output with high illumination customized led chips,6063 Aviation Aluminum and red copper vacuum tube & best turbine blade heat sink for much better heat dissipation to achieve longer lifespan & much further lighting distance.</p><p>Here is D1/D2/D3/D4 L-NF LED Beam specification</p><p><b>LED Chip Type</b>:high quality and high illumination of customized chips.</p><p><b>Heat Dissipation Technology:</b>:Newest technology Turbine blades -heat sink.makes the bulb much better heat dissipation to achieve much longer lifespan up to 30000h.</p><p><b>High illumination light</b>: Each bulb light output will be up to the maximum 6250 lumens in perfect condition (total 12500 lumens in total for both led Beam. </p><p><b>Easy installation</b>: For most vehicles, just <b>Plug-N-Play</b>, car installation manual included. Yet for some European vehicles or newest version, your vehicles may require to install the load resistor or decoder to avoid the error coder or blinking-off issues. This happens due to led bulbs draw much less current than stock lamp.</p><p><b>True 6000K~6500K Cool White Lighting</b>: Crystal clear daytime white lighting. Plus “Instant-On” capability with MINI-design.</p>