E10 Miniature Screw Concave LED Bulb 6 to 12 Volt DC

I purchased several lens and color combinations of the E10 bulbs to experiment with them for use in the dash board of my 1964 Jaguar E-type. I specifically wanted to use them in the smaller round instruments (fuel quantity, temperature oil pressure, etc.), for the green directional signal lights, and for the various warning and advisory lights (headlight brights, Ignition, fuel level, etc). I was very pleased with the results and am currently retrofitting the dash board as follows. The original incandescent lights were tinted by light blue filters in the bulb sockets. I elected to change the dash lighting to light green, so all of the gages were disassembled to remove the blue bubble shaped filters (they could also be punched out if you dont mind the bits of broken plastic inside the gage)....or stay with blue. The green Hi Flux bulb (78675G) works well in this application. The level of light intensity on the dials is roughly double that of the incandescent bulb with the blue lens cover (very dim). I had also lined the large dials (tach and speedometer) with LED strip lights (green), and the Hi Flux bulb nearly balanced the small gages with the large dials. The smaller gages are slightly less bright than the large dials, which was my objective. I used the white concave lens (79564W) for the various warning lights. The Short Round (87965) was too bright for these applications, particularly the hi-beam, which was offensive at night. I kept the original colored filters in the gages, and the white concave LED worked well...brightness is very close to the incandescent. As an aside, a blue LED with the red Jaguar plastic filter in the dash combine to yield zero light output...so keep in mind that LEDs will do odd things with OEM color filters. The green Flat Lens bulb (74276G) distributes the light perfectly behind the green arrows for the directional indicators, however it is considerably brighter than for the original incandescent bulb. An additional green filter or green bulb paint on the LED lens should tone down the brightness. By the way, I did try the other lens configurations for this application and was not happy with any of them. The concave did not distribute the light evenly across the green arrows, and the "short round" bulb was like a laser beam at night. Keep in mind that these bulbs work for this model of Jaguar. Brightness and color will vary depending on how your dash is configured, particularly if it has colored filters over incandescent bulbs. In summary, the Hi Flux lens shape will roughly double the brightness of the face of the typical Smiths or Lucas dials. They are a good alternative to a three LED strip light inside the case. The white concave lens in conjunction with the OEM colored lenses/filters worked for all warning lights and the bright headlight indicators. It appears that the flat lens has a "floodlight" effect (as expected). It is slightly less bright in the gage backlighting application than the Hi Flux. It distributes the light very well on the signal arrows, but might be a bit too bright at night (OK during daylight). Hope this helps give a sense of which lenses work for various applications. In the end, its probably best to purchase a few bulbs and experiment. Keep in mind that colored filters in the dash can either shift the final color or even black it out completely. Again, the red headlight "bright" filter in an old Jaguar will completely cancel a blue LED bulb. Good luck...and by the way, I am very happy with this company. (Updated on 11/23/2013.)

Im using the E10 screw base leds in my 1960 MGA and Im very happy with the results..