1. Introduction
The Perel EFL27 Portable Alarm Light is a compact and versatile safety indicator designed for various applications. Featuring 15 bright red LEDs, it provides clear visual signaling for enhanced safety. Its robust design includes a strong magnet for easy attachment to metallic surfaces, such as a vehicle body, and is water-resistant, allowing for reliable use in diverse conditions. This manual provides essential information for the proper setup, operation, and maintenance of your device.

Image 1.1: The Perel EFL27 Portable Alarm Light, a compact red LED safety indicator.
2. Safety Instructions
Please read and understand all safety instructions before using the Perel EFL27 Portable Alarm Light. Failure to follow these instructions may result in injury or damage to the device.
- Always read the entire instruction manual before initial use.
- Keep the device out of reach of children and pets.
- Do not stare directly into the LED light, as it may cause temporary vision impairment.
- Ensure batteries are inserted correctly according to polarity markings (+/-). Incorrect insertion can damage the device.
- Dispose of used batteries responsibly according to local regulations. Do not mix old and new batteries, or different types of batteries.
- Do not attempt to open, modify, or repair the device. Refer all servicing to qualified personnel.
- Avoid exposing the device to extreme temperatures or direct sunlight for prolonged periods.
- Although water-resistant, do not submerge the device in water.
3. Package Contents
Verify that all components are present in the package:
- 1 x Perel EFL27 Portable Alarm Light
- Batteries (may be pre-installed or included separately)
4. Setup
4.1 Battery Installation
The Perel EFL27 operates on batteries. If the batteries are not pre-installed, follow these steps:
- Locate the battery compartment cover on the back of the unit.
- Carefully open the compartment.
- Insert the required batteries (e.g., AAA or AA, refer to device markings if present) ensuring correct polarity (+ and -).
- Securely close the battery compartment cover.

Image 4.1: Rear view of the Perel EFL27, highlighting the battery compartment and integrated magnets.
5. Operating Instructions
5.1 Power On/Off and Mode Selection
To operate the alarm light:
- Press the power button (typically located on the front or side of the unit) to turn on the light.
- Each subsequent press of the power button will cycle through the available light modes (e.g., steady, various flashing patterns, rotating).
- To turn off the light, continue pressing the power button until the light switches off, or press and hold the button for a few seconds.
5.2 Placement and Attachment
The Perel EFL27 offers flexible placement options:
- Magnetic Attachment: Utilize the strong magnet(s) on the back of the unit to securely attach it to any suitable metallic surface, such as the side or rear of a vehicle, for high visibility.
- Ground/Road Placement: The compact and stable design allows the unit to be placed directly on the ground or road surface to mark an area or warn oncoming traffic.

Image 5.1: The Perel EFL27 Portable Alarm Light deployed on the road as a warning signal.
6. Maintenance
6.1 Cleaning
To clean the device:
- Wipe the exterior of the alarm light with a soft, slightly damp cloth.
- Do not use abrasive cleaners, solvents, or harsh chemicals, as these can damage the plastic housing or electronic components.
- Ensure the device is completely dry before storing or using it again.
6.2 Storage
For optimal longevity:
- Store the Perel EFL27 in a cool, dry place away from direct sunlight and extreme temperatures.
- If the device will not be used for an extended period, remove the batteries to prevent potential leakage and damage to the unit.
7. Troubleshooting
If you encounter issues with your Perel EFL27 Portable Alarm Light, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Light does not turn on. | Dead or incorrectly installed batteries. | Check battery polarity and replace with fresh batteries. |
| Light is dim or flickers. | Low battery power. | Replace all batteries with new ones. |
| Light modes do not change. | Faulty power button or low battery. | Ensure batteries are fresh. If the issue persists, contact customer support. |
| Water ingress after exposure to moisture. | Device submerged or exposed to excessive water pressure. | The device is water-resistant, not waterproof. Avoid submersion. Allow to dry completely. If damaged, replace. |
8. Specifications
| Feature | Specification |
|---|---|
| Model Number | EFL27 |
| Light Source | 15 x Red LEDs |
| Power Source | Battery (3 Volts) |
| Material | Plastic |
| Color | Red |
| Dimensions (L x W x H) | 3.5 x 17.5 x 25 cm |
| Weight | 192 g |
| Special Features | Strong magnet for attachment, Water-resistant |
9. Warranty and Support
9.1 Warranty Information
For details regarding the warranty period and terms for your Perel EFL27 Portable Alarm Light, please refer to the warranty card included with your purchase or the retailer's policy. It is recommended to retain your proof of purchase for any warranty claims.
9.2 Customer Support
Should you require technical assistance, have questions about the product, or need to report an issue, please contact Perel customer support. You can typically find contact information on the product packaging, the official Perel website, or through your point of purchase.





