No energy savings with 35watt HID's !!!!

[basslover911]

^ and how do you think those work?!

By a resistor ... Thus wasting the same amount of energy ... See what I was talking about now?

[jamesqf]

Originally Posted by DonR

Why would anyone need a bulb out idiot light. Looking out the windsheild and half the road is dark is a pretty good indicator.

A lot of people do most of their driving in cities, and with streetlights & other traffic, it can be pretty hard to tell if your lights are on at all, let alone whether one is out.

[Christ]

Originally Posted by jamesqf

A lot of people do most of their driving in cities, and with streetlights & other traffic, it can be pretty hard to tell if your lights are on at all, let alone whether one is out.

Regular and/or pre-trip equipment checks would remedy that situation... so it's still on the head of the driver when something goes out. It's part of vehicle ownership/maintenance to regularly check for these things.

This is why a cop can ticket you for a light being out, even if you claim you didn't know. You really might not have known - but you SHOULD have.

I really hate it when people make excuses for laziness.

[darcane]

Originally Posted by basslover911

^ and how do you think those work?!

By a resistor ... Thus wasting the same amount of energy ... See what I was talking about now?

Again, for a simple DC circuit: V = I x R and P = V x I

Or, to put it another way P = V²/R.
So, with constant voltage, as resistance increases, power decreases. Adding a resistor reduces the power used.

Mike

[tjts1]

Originally Posted by basslover911

^ and how do you think those work?!

By a resistor ... Thus wasting the same amount of energy ... See what I was talking about now?

Removing the bulb out idiot light from the dash works just as well. You're making a mountain out of a mole hill.

[RobertSmalls]

Originally Posted by darcane

However, in the grand scheme of things, it's almost irrelevant. Saving 20 watts x two lights is 40 watts. 745watts per hp, so you're saving a whopping .05hp by switching lights. I'd rather have the better lighting.

40W is miniscule; true. But HID lamps deliver more lumens per watt, so a 35W HID is as bright as a 55W halogen. Also remember that 40W is 0.05HP of pure electricity, which takes about 0.1HP at the alternator shaft. If you do an enormous amount of nighttime driving, or if legislation requires that you drive with the headlights on, you stand to save a few gallons of gas a year.

[darcane]

Originally Posted by RobertSmalls

40W is miniscule; true. But HID lamps deliver more lumens per watt, so a 35W HID is as bright as a 55W halogen. Also remember that 40W is 0.05HP of pure electricity, which takes about 0.1HP at the alternator shaft. If you do an enormous amount of nighttime driving, or if legislation requires that you drive with the headlights on, you stand to save a few gallons of gas a year.

OP was comparing 35W HID to 55W HID.

I'd still rather go with the brighter lights if I were doing lots of night driving. Saving a small amount of fuel isn't as important as improving your ability to see where you are going.

Mike