At first, I didn’t know how to review these... for my *taste* they are very much on the cooler side of white color temperature... that is just for my *taste*. The color temperature light projected looks a lot like the LEDs on a Tesla Model 3 so If you like that color you will certainly love these. I don’t very much care for that cool of a tone (preferring to stick with 5000k bulbs when I can find them) and almost took a star away, however these bulbs are advertised exactly as being this “blue” in hue, and I’ll post up a color temp measurement of the OE bulbs at 4300k vs the 6700k I observed using these bulbs. So, no stars deducted for this.
When I removed them from the packaging they looked almost exactly like the original equipment OSRAM bulbs in my car, but without the markings that indicated for road use. They installed exactly as OE.
As far as performance and illumination of the road these are AMAZING. In comparison To the 6-year old factory original Lexus ISF bulbs these are faaaarrrr brighter and clearer. Certainly if you’re reading this you’re looking to replace the OE bulbs on your Toyota or Lexus... order these now as they are absolutely worth the price premium over standard replacements. The performance improvement is as If wattage Increased and the projectors were replaced: the performance improvement is similar to removing halogen bulbs on a car and doing an HID retrofit! I’m glad I spent the significant cost premium over aftermarket brand or simply replacement OE 4300k OSRAM bulbs.
| Brand | OSRAM |
|---|---|
| Model | Cool Blue Boost |
| Item Weight | 4.8 ounces |
| Package Dimensions | 3.6 x 3.3 x 1.6 inches |
| Item model number | 66440CBB-HCB |
| Manufacturer Part Number | 66440CBB-HCB |
| OEM Part Number | 66440 |
| Position | Left |
| Mirror Lighting Type | D4S, automotive-exterior-headlight-bulbs |
| Voltage | 42 Volts |
