We have awarded this product AC All-Star status because out of the myriad of H4 bulbs being offered, most with unsubstantiated claims. These have been selected by Daniel Stern, worldwide automotive lighting expert and AC expert consultant, as the very best H4 bulb available.
120% Brighter Lighting
The only H4 Bulb We Recommend
Tungsram (GE) Megalight Ultra +120
aka GE (Tungsram) Nighthawk Xenon
As indicated by their name, these bulbs deliver 120% more illumination than a standard 60w/55w H4 bulb. That's 120% brighter with no increase in current draw or heat generated. As a result they don't require the installation of a relay kit as is required by the standard 100/55w H4 bulbs. There is one small compromise - they don't last as long as standard H4 bulbs.These are a simple plug n' play replacement for your current H4 bulbs. Just remove your old ones and install these (be careful not to touch the bulb part with your fingers). That's it.
Click Here for supporting documentation on why we recommend these over bulbs that are advertised as being brighter. Not many vendors do the research that A2C2 does. They often just sell the sexiest branding and packaging.
Important Note: The Tungsram (GE) Megalight Ultra +120 bulb is same exact bulb used in the GE Nighthawk Xenon, just in different packaging for different parts of the world. You may receive either to fill your order.