Why not change the normal bulb to led?

A year ago we conducted a review led socket H4 (ZR, No. 5, 2017) in search of the answer to the question: if they can replace conventional galogenki? Then all the new-fangled semiconductors deserve a failing grade. But it seemed to us that it will take quite a bit of time, some shortcomings will be eliminated and the LEDs will begin to produce the correct light pattern. In everyday life, for example, incandescent lamps easily give up the position of fluorescent and led sources.

Undertaking the expertise of led bulbs with the H7 base category, designed for installation in home optics, we were almost sure that one or two of them successfully will be given in the tests the desired picture. In this case, you can offer to legalize their use on vehicles equipped with a regular led headlights. Because safety on the roads this is just to win. We purchased gave us the samples to the laboratory of lighting technology of the Scientific and technical centre “Electronics”.

Below are all inspected products are arranged in alphabetical order. Given the snapshots correspond to the initial position of the test headlight with the halogen bulb. It will work head optics if, roughly speaking, Unscrew the halogen and screw in led lamp. During the tests we tried to make headlight with led source to Shine right: change the angle of rotation of the bulb, regulates the position of the lights. Alas, to no avail.

Why not change the normal bulb to led?

Why not change the normal bulb to led?

Clearlight H7, China

The approximate price 2500 RUB.

The declared parameters

Luminous flux 2800 lumens/1 lamp

Working voltage 12 In

Power consumption 30 W

Color temperature “white”

Lifetime > 30 000 hours

The bulb is equipped with a drivers power supply and finned heat sinks which can be put inside the headlamp housing. But to use these LEDs, is impossible: the right side of the illuminated enough, thus blinding oncoming drivers provided. But what else to expect from a huge “drops”, not like the filament?

Why not change the normal bulb to led?

Why not change the normal bulb to led?

Clearlight FLEX H7, China

The approximate price 2750 RUB.

The declared parameters

Luminous flux 3000 LM/lamp 1

Working voltage 12 In

Power consumption 30 W

Color temperature “white”

Lifetime > 30 000 hours

Tailed radiators coupled with the drivers will not fit in the headlamp housing, you need to make a homemade protective cover. But why? Headlights with these bulbs blind oncoming drivers, because in the harsh Protocol and specified “f”. in Fairness, we note that this is the only product that failed just one point out of five. Other things worse.

Why not change the normal bulb to led?

Why not change the normal bulb to led?

Clearlight LED laser vision, China

The approximate price 3900руб..

The declared parameters

Working voltage 12-24V

Power consumption 14 W

Light bulb with a “laser” name, consisting of three led rectangles, distinguished by the fact that the failed lighting in all control points. Then discuss the remaining parameters are already interested.

Why not change the normal bulb to led?

Why not change the normal bulb to led?

Interpower H7 G6 Z-ES, China

The approximate price 5000 rubles.

The declared parameters

Luminous flux 3000 LM/lamp 1

Working voltage 9-32 In

Power consumption 80 W/2 lamps

Color temperature 5000-5500 K

Lifetime > 50 000 hours

Four-element LED bulbs unanimously decided to blind oncoming drivers. Alas, fail.

Why not change the normal bulb to led?

Why not change the normal bulb to led?

i—zoom H7 Optima, China

The approximate price 2990 RUB.

The declared parameters

Working voltage 9-32 In

Power consumption 19,2 W

Color temperature “white”

Lifetime > 30 000 hours

Three led rectangles fit into a norm only at the point of 50V, failing all other parameters. The conclusion is obvious: in an automobile headlight a lamp cannot be installed.

Why not change the normal bulb to led?

Why not change the normal bulb to led?

LED Headlight RM-420*

The approximate price 4300 RUB.

The declared parameters

Luminous flux 8000 lumens/lamp 1

Working voltage 9-32 In

Power consumption 36W

Color temperature 6500 K

Lifetime > 30 000 hours

Led light bulb, containing three rather large led rectangle blind oncoming bad light right side. Fail.

* Country of origin not specified.

Why not change the normal bulb to led?

Why not change the normal bulb to led?

Philips X-tremeUltinon LED-HL [~H7], China

The approximate price 8500 RUB.

The declared parameters

Power consumption 25 W

Color temperature ≤ 6000 K

Lifetime ≤ 6000 hours

Have a four-element lamps the packaging is flirtatious badge: ~H7. Supposedly, fit H7, but only approximately. Well, away from public roads, use on health, and so impossible. The standard is not met.

Why not change the normal bulb to led?

Why not change the normal bulb to led?

Sho-Me LH G7-H7, China

The approximate price 3790 RUB

The declared parameters

Luminous flux 3000 LM/lamp 1

Working voltage 8-32 In

Power consumption 24 W

Color temperature 5000 To

Cute three-element bulbs with long tails-radiators behaved differently: selected indicators from the two bulbs from the kit differed threefold. But bottom line: poor lighting the right side and the outcome unsatisfactory.

Why not change the normal bulb to led?To see the regular halogen picture from the led instantly: distribution — normal, color — warm, close to the yellow.

To see the regular halogen picture from the led instantly: distribution — normal, color — warm, close to the yellow.

Our expectations were not justified — it is too early to legalize the led light bulb. The staff of the laboratory of lighting engineering, conducted the tests originally were skeptical. They have a rigid position: to work normally, led light can only in specially designed under the spotlight.

Why not change the normal bulb to led?Sphere to measure luminous flux.

Sphere to measure luminous flux.

This approach is shared by producers: they produce for the specification of the car headlights under specific light sources and do not even try to invent a “universal” lighting. Although the engineering imagination knows no bounds and it is possible that someday invent an led light source, which fit into a halogen headlamp. If just before this time, led lighting will not completely displace halogen.

METHODS OF TESTING

Why not change the normal bulb to led?

Each lamp we assigned a conventional number. The method of measurement according to the requirements of regulation UNECE No. 112-01, paragraph 6.2.4 “Measurement of light dipped beam headlights”. Tests were carried out with a headlamp head light 282.3775010 with homologation number 05547 E22 at the test points: 0-0, В50L, 75R, 50R, 50V. Test conditions: temperature 22 °C atmospheric pressure is 749 mm Hg. art., humidity — 35%. Used equipment: mechanical goniometer (a device for precision measurement of angles), power supply, ammeter, light meter. Conclusion: all the samples are being tested to control the headlight, do not meet the requirements of regulation UNECE No. 112-01. The test results relate to the acquired concrete samples, and therefore cannot serve as a basis for conclusions about the products of a company as a whole.

Each lamp we assigned a conventional number. The method of measurement according to the requirements of regulation UNECE No. 112-01, paragraph 6.2.4 “Measurement of light dipped beam headlights”. Tests were carried out with a headlamp head light 282.3775010 with homologation number 05547 E22 at the test points: 0-0, В50L, 75R, 50R, 50V. Test conditions: temperature 22 °C atmospheric pressure is 749 mm Hg. art., humidity — 35%. Used equipment: mechanical goniometer (a device for precision measurement of angles), power supply, ammeter, light meter. Conclusion: all the samples are being tested to control the headlight, do not meet the requirements of regulation UNECE No. 112-01. The test results relate to the acquired concrete samples, and therefore cannot serve as a basis for conclusions about the products of a company as a whole.

Why not change the normal bulb to led?Our expectations were not justified — it is too early to legalize led light bulb

Our expectations were not justified — it is too early to legalize led light bulb

The results of the test lights (Lada Kalina) with led light sources

The editors thank employees of LLC “Scientific-technical center “Avtoelektronika” and personally the head of the laboratory of lighting technology N.About. Bazina for the help in material preparation.