Halogen light bulbs Wiki

The H1 is a halogen lamp made for used in automotive headlamps and fog and driving lamps. It has additionally been commonly applied in crisis automobile lights.

The H1 ended up being the first halogen lamp authorized for automotive use. It had been introduced in 1962 by a team of European light bulb and headlamp producers. The light bulb was not authorized to be used in the US until 1997.

Base[edit]

The H1 lamp makes use of a P14.5s base in agreement with IEC 60061. This can be a round steel prefocus base 14.5mm in diameter with an appartment as well as 2 dimples and so the H1 could be installed in a lamp just in the one correct orientation. There's one 6.35mm male spade terminal in the centre of the base, whereby energy comes. The H1 reasons through the steel base itself.

Power and output[edit]

Under ECE Regulation 37, which governs automotive filament lamps in most worldwide, the H1 lamp's nominal rating is 55 watts at 12 volts, and its own test rating is 68W (optimum) and 1550 ±15per cent lumens at 13.2V. R37 also contains terms for 6-volt, 55-watt and 24-volt, 70-watt H1 lamps. America government cannot acknowledge ECE laws, but rather applies its own laws. Under these, the H1 is rated 65W (optimum) and 1410 lumens ±15percent at 12.8V. Regardless of the two different units of specified voltages and test protocols, the lamps on their own are identical; with couple of exceptions, 12-volt H1 lamps are manufactured and tested to adhere to both laws.

Color of light[edit]

Under ECE laws, H1 lamps have to emit white or selective yellowish light. U.S. laws require H1 lights to give off white light. Under both ECE and U.S. specs, the permitted number of white light is fairly big; some H1 lights have a slight blue or yellow tint to your cup though produce light legitimately acceptable underneath the need for white light.