[83bj60]

Originally Posted by cary

The HIR's have the same life as a stock bulb, the GE versions were rated at a 1000 hour life expectancy (same as a standard 9006).


The bulbs you posted a link to are not a HIR bulb, they do not have the coating on them.

Good to know, in any case that's not what the OP of that thread believed it was. I guess the globular shape is quite deceptive then.

Originally Posted by cary

If you have a truck that takes the H4 bulbs, there are now slight overwatt bulbs from Hella (Osram) that use a more efficient design and do not require wiring and harness upgrades. The bulbs are Hella Hyper bulbs:

65/70 watt 1350/2000 lumens
80/85 watt 1750/2400 lumens
55/60 watt- Standard 1000/1650 lumens
55/60 watt- high efficiency 1148/1895 lumens

For comparison the old overwatt H4 outputs are:

90/100 watt 1620/2400 lumens
100/130 watt 1820/3250 lumens

These big overwatt lamps should not be run in the 80, they will melt the housings.

I'm running the 90/100W 'old overwatt H4s' and didn't notice any problems. Of course, it's winter, and I haven't run them for hours on end. As a matter of fact, the housings still have frozen droplets of water in them from last week, when I literally had to 'ford' rivers of meltwater accumulating in between snowbanks from the recent thaw. i was surprised to find that ther are no drain holes in the lamps, as these headlights aren't really sealed (however, I believe it should be fairly simple to design some sort of rubber boot around the connector that could fit on the rear housing hole lip, and a self-sealing weeping tube at the low part to evacuate any infiltration)

Anyway thanks for the heads up, I'll monitor the situation closely.

Originally Posted by cary

The 65/70 and 80/85 bulbs are available from rallylights.com and daniel stern lighting. They run about $20 each.

Susquehanna MotorSports - Detail

Good to know! I'll check it out.