Introduction and Overview
This manual provides instructions for the BIGLIGHT Battery Operated LED Ceiling Light, Model B51IR-16CRGB-2. This versatile lighting solution offers remote-controlled operation, 12 color-changing options, and dimmable functionality, suitable for various indoor spaces.
Key Features:
- 4 Lighting Modes & 12 Colors: Choose from 12 distinct colors and 4 lighting modes (FLASH, STROBE, FADE, SMOOTH) using the 24-key remote control.
- Dimmable: Adjust brightness levels to your preference via the remote.
- Timer Function: Set the light to automatically turn off after 1, 2, 3, or 4 hours to conserve battery life.
- Battery Powered: Each light operates on 3 C-Cell batteries (not included), providing approximately 100 hours of run time.
- Easy Installation: Designed for simple screw mounting on any wood surface or wall.
- Versatile Use: Ideal for bedrooms, bathrooms, hallways, closets, showers, and other indoor areas.

Image: Two BIGLIGHT LED Ceiling Lights and the included remote control.
Package Contents
- 2 x BIGLIGHT LED Ceiling Lights
- 1 x Remote Control
- 4 x Mounting Screws
- 1 x User Manual (this document)
Setup and Installation
1. Battery Installation:
- Gently twist the back cover of the light counter-clockwise to open.
- Insert 3 C-Cell batteries (not included) into the battery compartment, ensuring correct polarity (+/-).
- Replace the back cover by twisting clockwise until secure.

Image: Illustration of battery compartment access and mounting screw locations.
2. Mounting the Light:
The light can be installed using the provided screws. Choose a suitable indoor location on a wood surface or wall.
- Position the light's base on the desired surface.
- Mark the locations for the two mounting screws through the designated holes on the base.
- Drill pilot holes if necessary, then secure the light's base using the provided screws.
- Ensure the light is firmly attached to the surface.

Image: Visual guide for screw mounting the light fixture.
Operating Instructions
Using the Remote Control:
The included 24-key remote control allows for comprehensive management of the light's functions from up to 20 feet away.

Image: Detailed layout of the remote control buttons and their functions.
- Power On/Off: Press the ON or OFF buttons.
- Color Selection: Choose from 12 preset colors by pressing the corresponding color buttons.
- Dimming: Use the brightness adjustment buttons (+ / -) to increase or decrease light intensity.
- Lighting Modes: Select from four dynamic modes:
- FLASH: Rapid color cycling.
- STROBE: Quick, intermittent flashes of a single color.
- FADE: Smooth transition between colors.
- SMOOTH: Gradual, continuous color change.
- Timer Function: Set the light to turn off automatically after 1, 2, 3, or 4 hours using the dedicated timer buttons.
Manual Operation (Tap Lens Switch):
The light can also be operated manually by pressing the tap lens switch located on the light fixture.

Image: Demonstrates manual color selection by tapping the light's lens.
- Short Press: Cycles through Warm White, Red, Green, Blue, and Off.
- Long Press: Adjusts brightness when in Warm White mode.
Maintenance
Battery Replacement:
When the light appears dim or unresponsive, it's time to replace the batteries. Each light requires 3 C-Cell batteries.
- Twist the back cover counter-clockwise to open the battery compartment.
- Remove the old batteries and dispose of them responsibly.
- Insert new 3 C-Cell batteries, observing correct polarity.
- Securely close the back cover by twisting clockwise.
Cleaning:
To clean the light fixture, gently wipe with a soft, dry cloth. Do not use abrasive cleaners or immerse the unit in water.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Light does not turn on. | Batteries are dead or incorrectly installed. | Replace batteries, ensuring correct polarity. |
| Light is dim. | Low battery power. | Replace batteries. |
| Remote control is not working. | Remote battery is dead or out of range. | Replace remote battery (CR2025, typically included). Ensure remote is within 20 feet of the light. |
| Light changes color unexpectedly. | Interference or accidental remote button press. | Reprogram desired color/mode using the remote. |
Specifications
| Feature | Detail |
|---|---|
| Model Name | Ceiling Light |
| Item Model Number | B51IR-16CRGB-2 |
| Brand | BIGLIGHT |
| Power Source | Battery Powered (3 C-Cell batteries per light) |
| Voltage | 4.5 Volts |
| Light Source Type | LED |
| Brightness | 300 Lumens |
| Color Temperature | 3000K (Warm White) |
| Special Features | Color Changing, Dimmable, Remote Controlled, Timer |
| Control Method | Remote Control and Push Switch |
| Product Dimensions | 5.12"D x 5.12"W x 1.97"H |
| Material | Plastic |
| Mounting Type | Screw Mounting |
| Indoor/Outdoor Usage | Indoor use only |
| Water Resistance Level | Not Water Resistant |
Warranty and Support
For warranty information or technical support, please refer to the contact details provided with your purchase or visit the official BIGLIGHT website. Keep your purchase receipt as proof of purchase.