Can LED lights be installed without lenses?

1 Answers
Mike
07/29/25 12:37pm
LED lights cannot be installed without lenses. Without lenses, the light scattering will be severe, which actually reduces the visibility of the LED. Therefore, lenses must be installed when installing LED lights. LED bulbs have good light-focusing properties, and the light-blocking plates inside the lenses are used to switch between high and low beams. Automotive headlight lenses are divided into two types: single-beam lenses, which only have a low beam and use halogen or xenon bulbs; and dual-beam lenses, which use internal light-blocking plates to switch between high and low beams. When the light-blocking plate is closed, it is the low beam, and when it is open, it is the high beam. If the bulb inside the lens remains unchanged, there will be no change in the light output. Without lenses, the light-focusing capability of LED bulbs cannot be fully utilized due to the absence of light-blocking plates, leading to light scattering. Therefore, LEDs and lenses must be installed together. If LED headlights must be installed without lenses, high-performance LED bulbs and modified high/low beam reflector bowls are usually required to prevent light scattering from affecting visibility.
Was this review help?
18
1
Share
More Forum Discussions

How to Start an Automatic Transmission Vehicle?

Starting an automatic transmission vehicle involves the following steps: 1. Automatic cars can only be started when in P (Park) or N (Neutral) gear, and some models may even require being in P gear to start. Therefore, always ensure the gear is in P before ignition. 2. Press the brake - start the engine - shift to D (Drive) or R (Reverse) gear - release the handbrake - release the foot brake - press the accelerator - begin driving. If waiting at a red light for an extended period, there are two gear-shifting methods: 1. Keep the gear in D and press the brake, which consumes more fuel than shifting to N. If the waiting time is short, it's advisable to shift to N and apply the handbrake. 2. For longer waits, to save fuel and be more environmentally friendly, switch to parking mode by applying the handbrake and shifting to P gear.
1
1
Share

Why is the car engine emitting white smoke?

Reasons and solutions for a car engine emitting white smoke are as follows: 1. Low temperature: During engine operation, the exhaust gases encounter the low external temperature and condense instantly, producing water vapor that forms a large amount of mist-like white smoke. In this case, after the engine runs for a while, its temperature will rise, allowing the gasoline to burn fully, and the white smoke phenomenon will disappear. 2. Engine malfunction: If white smoke persists, it is usually caused by the engine burning oil. In this situation, it is generally necessary to visit a 4S shop for repairs.
3
5
Share

How to Maintain Leather Seats?

Methods for maintaining leather seats: 1. Apply a protective agent, which not only reduces the penetration of moisture and dirt into the leather but also replenishes the leather with oil nutrients, effectively restoring its softness and breathability while extending its lifespan. 2. Pay attention to keeping the interior clean and hygienic. During daily use, it is important to develop good hygiene habits and avoid placing dirty clothes, towels, or basketballs on the leather seats. 3. Avoid installing seat covers. Car leather seats are not as delicate as one might think. With proper care, leather seats are actually more resistant to dirt than regular fabric seats. Ordinary dust and stains can be easily wiped away with a clean cloth, making maintenance very convenient. 4. Keep away from heat sources. If leather seats are exposed to high temperatures for extended periods, the leather can become dry, and in severe cases, the protective oil film can be damaged, accelerating the aging of the leather and leading to cracking and fading. It is advisable to apply a layer of heat-insulating film to your car and avoid parking it directly under the sun. If long-term parking in an open area is necessary, placing a sunshade in the car can help reduce UV damage to the leather seats.
3
3
Share

What should be checked for a driver's license test?

The physical examination items required for a driver's license test include vision, hearing, height, color discrimination, and the motor ability of limbs, trunk, and neck. The examination fee is generally 50. Below is an introduction to the driving school physical examination items: 1. Height: Applicants for large buses, tractors, city buses, large trucks, and trolleybuses must have a height of 155 cm or above. Applicants for medium-sized buses must have a height of 150 cm or above. 2. Vision: Applicants for large buses, tractors, city buses, medium-sized buses, large trucks, trolleybuses, or trams must have uncorrected or corrected visual acuity of at least 5.0 on the logarithmic visual acuity chart for both eyes. Applicants for other vehicle types must have uncorrected or corrected visual acuity of at least 4.9 on the logarithmic visual acuity chart for both eyes. 3. Color discrimination: No red-green color blindness. This is consistent with the vision requirements in the driving school physical examination. 4. Hearing: Able to distinguish the direction of sound with each ear 50 cm away from a tuning fork. 5. Upper limbs: Both thumbs must be intact, and each hand must have at least three other fingers intact, with normal limb and finger motor function. 6. Lower limbs: Normal motor function. Applicants for driving manual transmission vehicles must have a lower limb length difference of no more than 5 cm. Applicants for driving automatic transmission vehicles must have a sound right lower limb. 7. Trunk and neck: No motor dysfunction.
3
5
Share

What Do the Letters on an Automatic Transmission Mean?

Generally, there are five letters on the gear shift of an automatic transmission car, arranged from top to bottom as: P, R, N, D, L. Here’s a detailed introduction: 1. P (Parking Gear): When the car is parked and not in use, the gear is set to this position. At this time, the wheels are mechanically locked to prevent rolling. 2. R (Reverse Gear): Used when reversing the car. 3. N (Neutral Gear): Used when temporarily stopping (e.g., at a red light). Note that this gear indicates neutral, and to prevent the car from rolling on a slope, the brake must be pressed. 4. D (Drive Gear): Also known as the driving gear, used when moving forward. 5. L (Low Gear): When going downhill or on a long slope, shifting to this gear limits the car's gear to the lowest gear only (equivalent to first gear in a manual transmission car). This allows the car to use engine power for braking when going downhill, preventing the driver from having to press the brake for a long time, which could overheat the brake pads and cause danger.
5
1
Share

What to Do If You Accidentally Fill Your Car with 92 Instead of 95 Octane Gasoline?

It's not a big deal if you accidentally fill your car with 92 octane gasoline once or twice, but you should avoid mixing different octane levels for a long time. Here is some extended information about gasoline: 1. Cars have specified gasoline octane ratings, so it is not recommended to mix 95 and 92 octane gasoline. 2. The mixtures of 92 and 95 octane gasoline are essentially the same, but the difference lies in the proportion of their mixtures. Long-term mixing of different octane gasoline can reduce anti-knock properties, causing the engine to self-ignite before the designated ignition timing. This may lead to ignition system confusion, engine shaking, and in severe cases, damage to the car engine.
19
2
Share
Cookie
Cookie Settings
© 2025 Servanan International Pte. Ltd.