Answering the need for reliable, visible trailer and vehicle signaling, rectangle turn signal lights are designed for 12V systems and provide clear amber illumination. This guide highlights five top products and explains who each is best for. Ideal buyers include fleet operators, weekend RV enthusiasts, and DIY trailer owners who want easy installation, durable housing, and bright signaling. The table below compares the selected options at a glance.
| Product | Type | LED Count | Wiring | |
|---|---|---|---|---|
| PVerandio 2pcs 6 Inch Amber Side Marker Lights | Rectangular Marker / Turn Signal | 21 per light | 3-wire (White, Black, Red) | All-around trailer use; easy hardwire |
| Partsam 2pcs 6″ Rectangle Amber 21LED | Rectangular Marker / Turn Signal | 21 per light | 3-wire | Versatile for combined marker and turn signal |
| Partsam 2pcs 6 inch Amber 20 LED | Rectangular Marker / Turn Signal | 20 per light | 3-wire | Clear lens, multi-function use |
| AT-HAIHAN 2-Pack Aluminum Housing Amber LED | Trailer Marker / Brake / Turn | 12 SMD LEDs per unit | 3-wire | DOT compliant, rugged aluminum housing |
PVerandio 2pcs 6 Inch Amber Lights
Best for flexible trailer setups, these 2×6 inch amber lights use 21 LEDs per unit for strong visibility. They are designed for 12V systems and feature a three-wire harness for ground, marker/low brightness, and turn signal/high brightness. The compact housing fits most standard mounting centers with a 4.8 inch hole-to-hole distance. Suitable for trailers, trucks, RVs, and campers requiring a reliable dual-function signal. A potential limitation is the necessity of proper sealing during installation to prevent moisture ingress in extreme conditions.
Partsam 2pcs 6″ Rectangle 21LED Lights
These 6×2 inch amber lights are designed as a 3-wire assembly, usable as both markers and turn signals. With 21 LED diodes per light, they deliver a strong presence for trailers and RVs. The dual-function capability means you can configure as marker-only or turn-signal-only if you leave one wire unused. Best for customers who want a single lighting unit that can serve multiple signaling roles. A limitation is that some installations may require precise wiring to maximize the dual-function feature.
AT-HAIHAN Aluminum Housing Amber LEDs
These DOT-compliant, slim aluminum housing lights offer 12 SMD LEDs with a high-brightness red/low-brightness white configuration. Intended for front or rear applications on trucks, trailers, RVs, and buses, their rugged housing resists shock and vibration. Best for buyers seeking a durable, professional-grade option with clear mode separation for brake/turn versus marker. A caveat is that the aluminum housing may require weatherproof sealing during mounting in harsh environments.
Partsam 2Pcs 6″ Amber 13LED With Reflector
This 6×2″ light offers 13 LEDs and a reflective exterior to boost side visibility. The dual-function design allows it to serve as a marker or turn signal, with a 3-wire system for flexible wiring. It’s particularly suitable for older trailers or vehicles where a cost-effective, visible signaling upgrade is desired. Potential limitation: lower LED count than some 20-21 LED models, which may affect brightness in very dark conditions.
Partsam 10Pcs 2×6 Amber LED Lights With Reflector
A larger pack suitable for fleet uses or multiple trailer projects, these 10 pieces feature 13 LEDs per unit and a built-in reflector for enhanced side illumination. The 6×2 size aligns with common mounting standards, and the 3-wire setup enables combined marker and turn signaling. Best for bulk purchases or consistent styling across multiple trailers. A note: ensure you have enough mounting space for all units when configuring a multi-vehicle setup.
Partswcgg 10Pcs 6″ Rectangle LED Lights
A ten-pack option featuring 20 LEDs per light, these waterproof, sealed fixtures use a three-wire configuration. They emphasize a contemporary look with a miro-reflex reflector design to enhance light output. Best for buyers needing bright, uniform lighting across multiple trailers or vehicles. Limitation: some users may find the reflector design more pronounced than needed for small spaces.
WUSHIXAN 2pcs Amber 21LED Lights
These 5.78″ x 2″ rectangle lights use 21 LEDs per unit and feature a three-wire harness for dual-function signaling. The design suits trailers, RVs, campers, and larger utility vehicles needing a balance of compact size and brightness. They are easy to mount and provide solid nighttime visibility. A caveat is that deeper mounting may be required for flush installation depending on vehicle design.
Buying Guide
Key considerations when choosing rectangle turn signal lights include compatibility with 12V electrical systems, mounting hole spacing (center-to-center distance around 4.8 inches is common), and the availability of a true 3-wire design for combined marker and turn signaling. Decide if you need dual-function lighting (marker plus turn) or marker-only performance. Durability matters; look for weatherproofing, sealed lenses, and corrosion-resistant housings for outdoor use. Consider LED count and brightness relative to your vehicle size and typical operating conditions (night driving, fog, rain). If you manage a small fleet, buying in bulk can reduce maintenance downtime and ensure uniform appearance across vehicles.
FAQ
Q: Are these lights DOT compliant?
A: Some models advertise DOT approval or DOT-style compliance; check each listing for specific certification claims and regional requirements.
Q: Can I use these lights as marker lights only?
A: Yes. With a 3-wire setup, you can use two wires for marker lighting and omit the third, depending on the wiring configuration.
Q: What mounting spacing should I expect?
A: A common hole-to-hole distance is about 4.8 inches, which fits many standard trailer mounting patterns.
Q: What maintenance is required?
A: Regularly inspect seals and mounting hardware to prevent water ingress. Clean lenses to maintain brightness and replace seals if they show wear.
Q: Which option is best for a multi-vehicle fleet?
A: A bulk-pack model with 10 pieces or more, featuring consistent brightness and a 3-wire configuration, is ideal for uniform signaling across vehicles.
Q: Are these lights waterproof?
A: Most listings indicate waterproof or weather-resistant designs; verify IP ratings or explicit waterproofing details in the product description.
Additional Considerations
- Confirm voltage compatibility with your vehicle’s electrical system (12V DC is standard).
- Check compatibility with existing mounting holes and wiring harness lengths.
- Evaluate whether you need a reflector-enhanced design for enhanced side visibility.