As a rule of thumb, any halogen bulb with a colour temperature over 4200K is most likely non-road legal. OSRAM's Cool Blue Intense range is your best bet if you're looking for halogen bulbs that are cooler, but still remain road legal. HID bulbs with higher colour temperatures are often road legal. Despite their bluish colour, HID bulbs are Socket Compatibility Group 1 bulbs, which include H1, H3, H4, H7, H11, HB3, and HB4 are not all interchangeable even though they're in the same category. These types of bulbs are usually used as headlights. Their socket compatibility will depend on the bulb base and the manufacturer. Though the width and height of the batteries are the same, the length is different for both of the batter. While the H7 battery is 278 mm in length, the H8 is 315 mm in length. That means the H8 is 37 mm lengthier than the H7. Also, the H8 will have a greater RC and CCA rating than the H7. I'm tryin to buy this Phillips HID kit from groupbuycenter for $425 shipped but they only offer 9006/9004 and H4/H7. In the manual the bul for the newage WRX is 9007. So I emailed them and ask if they have 9007 but they are not familiar with it. I also read somewhere else in the forum that the WRX bulb is H4. One of the main differences between the H9 and H11 bulbs is their size and shape. The H9 bulb has a length of 2.56 inches and a diameter of 0.94 inches, while the H11 bulb has a length of 2.75 inches and a diameter of 1 inch. This means that the H11 bulb is slightly longer and wider than the H9 bulb, which can make it more difficult to install A lower weight is also an advantage for home appliances, as it makes transportation easier, and for many other types of products. has a detachable cable. Bang & Olufsen Beoplay H4. Bang & Olufsen Beoplay H7. With a detachable cable you can use alternative cables, and if the cable is pulled it will pop out instead of breaking. HID replacement headlight bulbs for your Toyota - start from $129.95. These are the HID conversion kits - start from $128.95. LED fog light bulbs to match your HID, start from $129.95. Hi power LED head light bulbs - start from $189.95 per set. HIR replacement headlight bulbs. road vs. on-road) Application (Category and Product specific) Power input Nominal voltage Nominal wattage NIGHT BREAKER 200 H4 64193NB2 00 On-road Halogen headlight lamp 75 W;68 W 1) 12.0 V 60/55 W NIGHT BREAKER 200 H7 64210NB2 00 On-road Halogen headlight lamp 58 W 1) 12.0 V 55.00 W NIGHT BREAKER 200 H11 64211NB2 00 On-road Halogen headlight .

h4 vs h7 vs h11