---
product_id: 430067830
title: "SD03 4-Color-in-1 Scuba Tank Marker Light Dive Beacon | Green/Blue/White/Red, 8 Modes (Constant & Flashing), BCD Mountable, IP68 Waterproof, for Night Diving & Buddy Idenfication"
brand: "orcatorch"
price: "€ 71.35"
currency: EUR
in_stock: true
reviews_count: 10
category: "Orcatorch"
url: https://www.desertcart.sk/products/430067830-sd03-4-color-in-1-scuba-tank-marker-light-dive
store_origin: SK
region: Slovakia
---

# IPX68 waterproof to 100m 100 lumens max brightness up to 250h runtime SD03 4-Color-in-1 Scuba Tank Marker Light Dive Beacon | Green/Blue/White/Red, 8 Modes (Constant & Flashing), BCD Mountable, IP68 Waterproof, for Night Diving & Buddy Idenfication

**Brand:** orcatorch
**Price:** € 71.35
**Availability:** ✅ In Stock

## Summary

> 🌈 Light Up Your Dive, Stand Out Underwater!

## Quick Answers

- **What is this?** SD03 4-Color-in-1 Scuba Tank Marker Light Dive Beacon | Green/Blue/White/Red, 8 Modes (Constant & Flashing), BCD Mountable, IP68 Waterproof, for Night Diving & Buddy Idenfication by orcatorch
- **How much does it cost?** € 71.35 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sk](https://www.desertcart.sk/products/430067830-sd03-4-color-in-1-scuba-tank-marker-light-dive)

## Best For

- orcatorch enthusiasts

## Why This Product

- Trusted orcatorch brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **360° Multi-Color Visibility:** Four vibrant colors (White, Red, Blue, Green) with 8 modes ensure you’re unmistakably seen by your dive team in any underwater scenario.
- • **Compact & Lightweight Design:** At just 50g and pocket-sized, this beacon mounts easily on your BCD or tank without adding bulk or drag.
- • **Glove-Friendly Smart Control:** Intuitive rotary switch with non-slip silicone ring and memory mode lets you effortlessly toggle colors and modes—even with thick gloves on.
- • **Endurance That Outlasts Your Dive:** Up to 250 hours of continuous runtime means no mid-trip battery panic—dive longer, explore deeper, and stay safe.
- • **Rugged Reliability for Serious Divers:** Built with impact-resistant, corrosion-proof materials and rated to 100m depth, it’s the ultimate companion for professional and recreational divers alike.

## Overview

The ORCATORCH SD03 is a professional-grade scuba tank marker light featuring 4 colors and 8 lighting modes with 360° shadowless illumination. Powered by a single AAA battery, it offers up to 250 hours of runtime and is rated IPX68 waterproof to 100 meters. Its glove-friendly rotary switch with memory function and lightweight, compact design make it an essential, reliable beacon for night diving, team coordination, and underwater safety.

## Description

desertcart.com : ORCATORCH SD03 4-Color-in-1 Scuba Tank Marker Light Dive Beacon | Green/Blue/White/Red, 8 Modes (Constant & Flashing), BCD Mountable, IP68 Waterproof, for Night Diving & Buddy Idenfication : Sports & Outdoors

Review: The Swiss Army Knife of Signal Beacons - The Swiss Army Knife of Signal Beacon. As a Master Scuba Diver with over 15 years in the water and hundreds of logged night dives, I’ve seen signal lights evolve from clunky, one-color chemical sticks to the high-tech LEDs we use today. After putting the **ORCATORCH SD03 4-Color-in-1 through a week of intensive liveaboard diving, I can confidently say this is one of the most practical additions you can make to your kit. The Versatility Factor (4 Lights in 1) The standout feature is, of course, the four color options (Red, Green, Blue, and White). In the past, if I wanted to distinguish myself from my dive buddy or identify the dive lead, we had to buy separate colored beacons. With the SD03, I can set my buddy to Green and myself to Blue with a simple twist of the head. It makes group coordination under a moonless sky incredibly easy. Build Quality & Depth Rating Orcatorch is known for ruggedness, and the SD03 doesn't disappoint. It’s compact, made of high-strength aluminum, and feels like a piece of professional equipment rather than a plastic toy. I took this down to 130 feet (40m) on a wreck dive off the coast, and the rotary switch remained butter-smooth. No leaks, no pressure-related sticking. The double O-ring seal provides that extra peace of mind every diver craves. User Experience (The "Glove Test") One of my biggest pet peeves is gear that is hard to operate with 5mm neoprene gloves. The SD03 uses a simple tail-rotation system to cycle through the colors. It’s tactile, intuitive, and can be done one-handed while holding a reel or a primary torch in the other. Battery Life & Maintenance It runs on a single AAA battery. Some might prefer rechargeables, but as a traveler, I love the simplicity of AAA. I can find them in any remote dive destination on earth. I’ve logged about 8 hours of "on time" so far, and the luminosity hasn't dropped a bit. Pros: * Color Memory: It remembers the last color you used. * 360-Degree Visibility: The frosted housing diffuses light beautifully without blinding your buddy. * Travel Friendly: Small enough to fit in a regulator bag or even a pocket. Cons * Honestly, none at this price point. It does exactly what it’s supposed to do. Final Verdict: Whether you are a recreational diver looking for better visibility during night dives or a professional who needs to mark an ascent line or distinguish students, the ORCATORCH SD03 is a "no-brainer." It replaces four separate pieces of gear with one reliable, bomb-proof unit.
Review: OrcaTorch SD03 Review - SD03: SD03 Dive Beacon I'm always looking to increase my visibility and preparedness. The SD03 Dive Marker does both. It can provide a visible strobe for others to see you or can be used as a backup flashlight. Both are important items to have but in this case, incorporated into the same device. I took the SD03 on some cold dark dives here in the Pacific Northwest as well as a week of warm water diving in the caribbean.  Overview: So how did the SD03 Dive Beacon do? In the case: It comes in a box with spare o-rings, a single aaa battery, a lanyard, a user manual and a warranty card. Build and design: The overall quality feels solid in hand. The threading screws together with ease. It came with lubricated double o-rings that should help keep it watertight at 100m depth. Depth Rated 100m Size: 76.15mm (Length)* 30.5mm(Diameter) * Net Weight: 50g without battery Power: It’s powered by a single AAA or rechargeable lithium 14500 battery. I chose to use a Vapcell H10 14500 Purple/White 10A Button Top 1000mAh Battery Max Runtime: 250 hours (Battery dependent) Simple: The light is intuitive and easy to use. Simply twist on and off. It can emit light in 4 different colors and has 8 lighting modes: for each color either constant light or flashing mode. Both color and light modes can be chosen by rotating the body. The mode used for more than 3s will be memorized, when you turn it on, the SD03 will start to cycle from the memorized mode by default Attachment points: There is a single attachment point on the tail of the light. You can use the provided lanyard. My only concern is the plastic used for the attachment point. The plastic could snap under force or if dropped. Metal would be a better option. Finish: The finish shows little wear after multiple dives. Final Thoughts: Pros: -Bright and sustainable output. -Good colors for underwater use. -Good Size. Small enough to travel with. Very lightweight. -Twist On/Off for easy use. -Includes one aaa battery -Long runtime allows for multiple dives before needing new batteries. -Adds safety to any dive -100m rated depth makes this usable to technical and recreational divers. -Good value -Great emergency backup light Con’s: -It should come with a rechargeable 1000 mah 14500 battery. -Flashing pulse speed is not controllable. It is faster than I would prefer. -Im concerned the plastic attachment point will break. Metal would be more appropriate -There should be a white flashing option on the body like the other colors -The light is significantly brighter with a 14500 battery. AA output is dull in comparison.

## Features

- No Standalone lithium batteries are sold with the product.
- 【360 Degree 4-Color 8-Mode】100 lumens white light with 48m beam distance, 360° shadowless lighting lets teammates spot you instantly in dark water; white/red/blue/green constant/strobe modes fit dive positioning, warning, rescue and team grouping needs, 1 light for dual illumination & signal functions.
- 【250h Long Runtime】For a max 250-hour runtime, no frequent replacement for multi-day diving;
- 【Rotary Switch & Easy Mount】Tighten the head to turn on the light, unscrew the head to turn off. Both colour and light mode can be chosen by rotating the head. Comes with a lanyard for wrapping on BCD backplate, cylinder strap and dive backpack (no extra accessories); only 50g net weight, stays stable without shaking and causes zero burden.
- 【Glove-Friendly Operation with Smart Memory】Non-slip silicone ring paired with high-torque rotary switch enables easy on/off and mode switching even with thick diving gloves; mode memory function saves your frequently used setting (over 3s), no repeated debugging underwater for blind operation convenience.
- 【IPX68 Waterproof 100M for Deep Dive Reliability】 Professional IPX68 waterproof withstands 100m deep water pressure; 1.5m impact-resistant and seawater corrosion-proof high-transparency shell
- This is a complete dive light set, ready to use right out of the box.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B09TFL2918 |
| Amperage | 3 A |
| Battery Description | Alkaline |
| Beam Angle | 360 degrees |
| Best Sellers Rank | #48,823 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #14 in Diving Safety Lights |
| Brand Name | ORCATORCH |
| Bulb Shape Size | FC8 |
| Color | Blue,Green,Red,White |
| Customer Reviews | 4.6 out of 5 stars 200 Reviews |
| Finish Type | Plastic |
| Finish Types | Plastic |
| Included Components | Light kit inlcuded |
| Item Dimensions L x W x H | 3"L x 1.2"W x 0.39"H |
| Item Type Name | dive light |
| Item Weight | 1.76 ounces |
| Light Output Maximum | 100 lumens |
| Light Source Special Features | flashing |
| Light Source Type | Light Emitting Diode |
| Light Source Wattage | 2 watts |
| Manufacturer | ORCATORCH TECHNOLOGY LIMITED |
| Manufacturer Part Number | OT-SD03 |
| Manufacturer Warranty Description | 24 months warranty. |
| Material | Plastic |
| Material Type | Plastic |
| Maximum Compatible Light Source Wattage | 2 watts |
| Model Number | OT-SD03-2022 |
| Mounting Type | Handheld |
| Number of Batteries | 1 AA batteries required. (included) |
| Number of Items | 1 |
| Number of Light Sources | 4 |
| Number of Packs | 1 |
| Power Source | Battery Powered |
| Set Name | 4-Color-in-1 |
| Shade Material | Plastic |
| Shape | Round |
| Style Name | Compact |
| Unit Count | 1 Count |
| Voltage | 1.5 volts |
| Wattage | 2 watts |

## Product Details

- **Color:** Blue,Green,Red,White
- **Finish Type:** Plastic
- **Light Source Type:** Light Emitting Diode
- **Material:** Plastic
- **Shape:** Round

## Images

![SD03 4-Color-in-1 Scuba Tank Marker Light Dive Beacon | Green/Blue/White/Red, 8 Modes (Constant & Flashing), BCD Mountable, IP68 Waterproof, for Night Diving & Buddy Idenfication - Image 1](https://m.media-amazon.com/images/I/51+F2dySxkL.jpg)

## Questions & Answers

**Q: What is the ORCATORCH SD03 used for?**
A: The ORCATORCH SD03 is a dive signal light designed to improve underwater visibility and communication. It is suitable for scuba diving, cave exploration, emergency signaling, and outdoor activities where reliable visibility is needed.

**Q: What light colors and modes does the SD03 provide?**
A: The SD03 offers four color options with eight lighting modes: steady white, red, blue, and green, plus flashing white, red, blue, and green modes.

**Q: Can the SD03 be used for night diving and underwater signaling?**
A: Yes. The SD03 is designed for underwater signaling and backup lighting. The red, green, and blue light modes help divers communicate and identify signals underwater, while the white light provides reliable illumination when needed.

**Q: Is the ORCATORCH SD03 easy to carry during diving?**
A: Yes. The SD03 features a compact and lightweight design that takes up minimal space in your dive gear. It can be easily attached to your BCD, diving equipment, making it an ideal companion for scuba diving and outdoor activities.

**Q: Why is a multi-color dive light useful underwater?**
A: Red light helps preserve night vision, while green and blue lights can be used for signaling and special underwater observations. The SD03 gives divers more flexibility in various diving scenarios.

## Customer Reviews

### ⭐⭐⭐⭐⭐ The Swiss Army Knife of Signal Beacons
*by J***E on August 6, 2026*

The Swiss Army Knife of Signal Beacon. As a Master Scuba Diver with over 15 years in the water and hundreds of logged night dives, I’ve seen signal lights evolve from clunky, one-color chemical sticks to the high-tech LEDs we use today. After putting the **ORCATORCH SD03 4-Color-in-1 through a week of intensive liveaboard diving, I can confidently say this is one of the most practical additions you can make to your kit. The Versatility Factor (4 Lights in 1) The standout feature is, of course, the four color options (Red, Green, Blue, and White). In the past, if I wanted to distinguish myself from my dive buddy or identify the dive lead, we had to buy separate colored beacons. With the SD03, I can set my buddy to Green and myself to Blue with a simple twist of the head. It makes group coordination under a moonless sky incredibly easy. Build Quality & Depth Rating Orcatorch is known for ruggedness, and the SD03 doesn't disappoint. It’s compact, made of high-strength aluminum, and feels like a piece of professional equipment rather than a plastic toy. I took this down to 130 feet (40m) on a wreck dive off the coast, and the rotary switch remained butter-smooth. No leaks, no pressure-related sticking. The double O-ring seal provides that extra peace of mind every diver craves. User Experience (The "Glove Test") One of my biggest pet peeves is gear that is hard to operate with 5mm neoprene gloves. The SD03 uses a simple tail-rotation system to cycle through the colors. It’s tactile, intuitive, and can be done one-handed while holding a reel or a primary torch in the other. Battery Life & Maintenance It runs on a single AAA battery. Some might prefer rechargeables, but as a traveler, I love the simplicity of AAA. I can find them in any remote dive destination on earth. I’ve logged about 8 hours of "on time" so far, and the luminosity hasn't dropped a bit. Pros: * Color Memory: It remembers the last color you used. * 360-Degree Visibility: The frosted housing diffuses light beautifully without blinding your buddy. * Travel Friendly: Small enough to fit in a regulator bag or even a pocket. Cons * Honestly, none at this price point. It does exactly what it’s supposed to do. Final Verdict: Whether you are a recreational diver looking for better visibility during night dives or a professional who needs to mark an ascent line or distinguish students, the ORCATORCH SD03 is a "no-brainer." It replaces four separate pieces of gear with one reliable, bomb-proof unit.

### ⭐⭐⭐⭐⭐ OrcaTorch SD03 Review
*by M***Y on August 6, 2023*

SD03: SD03 Dive Beacon I'm always looking to increase my visibility and preparedness. The SD03 Dive Marker does both. It can provide a visible strobe for others to see you or can be used as a backup flashlight. Both are important items to have but in this case, incorporated into the same device. I took the SD03 on some cold dark dives here in the Pacific Northwest as well as a week of warm water diving in the caribbean.  Overview: So how did the SD03 Dive Beacon do? In the case: It comes in a box with spare o-rings, a single aaa battery, a lanyard, a user manual and a warranty card. Build and design: The overall quality feels solid in hand. The threading screws together with ease. It came with lubricated double o-rings that should help keep it watertight at 100m depth. Depth Rated 100m Size: 76.15mm (Length)* 30.5mm(Diameter) * Net Weight: 50g without battery Power: It’s powered by a single AAA or rechargeable lithium 14500 battery. I chose to use a Vapcell H10 14500 Purple/White 10A Button Top 1000mAh Battery Max Runtime: 250 hours (Battery dependent) Simple: The light is intuitive and easy to use. Simply twist on and off. It can emit light in 4 different colors and has 8 lighting modes: for each color either constant light or flashing mode. Both color and light modes can be chosen by rotating the body. The mode used for more than 3s will be memorized, when you turn it on, the SD03 will start to cycle from the memorized mode by default Attachment points: There is a single attachment point on the tail of the light. You can use the provided lanyard. My only concern is the plastic used for the attachment point. The plastic could snap under force or if dropped. Metal would be a better option. Finish: The finish shows little wear after multiple dives. Final Thoughts: Pros: -Bright and sustainable output. -Good colors for underwater use. -Good Size. Small enough to travel with. Very lightweight. -Twist On/Off for easy use. -Includes one aaa battery -Long runtime allows for multiple dives before needing new batteries. -Adds safety to any dive -100m rated depth makes this usable to technical and recreational divers. -Good value -Great emergency backup light Con’s: -It should come with a rechargeable 1000 mah 14500 battery. -Flashing pulse speed is not controllable. It is faster than I would prefer. -Im concerned the plastic attachment point will break. Metal would be more appropriate -There should be a white flashing option on the body like the other colors -The light is significantly brighter with a 14500 battery. AA output is dull in comparison.

### ⭐⭐⭐⭐⭐ Great beacon
*by R***L on July 26, 2026*

After using the ORCATORCH SD03 extensively in real-world diving conditions, I can confidently say it is a significant upgrade over previous dive beacons and has completely replaced my ORCATORCH SD01. One thing worth noting is that the beacon may appear somewhat dim when viewed above the surface. However, that impression disappears underwater. I tested the SD03 on dives to approximately 300 feet in low-visibility ocean conditions, where it remained easy to identify and track. Its underwater performance is excellent, which is ultimately what matters most for a dive beacon. The standout feature is the ability to select from four different colors—blue, red, green, and white. As an instructor, this has become an invaluable tool for team management. Assigning different beacon colors to individual students allows me to quickly identify divers at a glance, improve buddy team accountability, and maintain better situational awareness, especially during night dives, low-visibility training, or complex dive operations. I also appreciate the multiple operating modes, including both constant and flashing options. The white flashing mode is particularly useful as an emergency signaling feature, adding another layer of safety should a diver need to attract attention underwater or at the surface. The compact size makes it easy to mount almost anywhere on your equipment without adding noticeable weight or creating unnecessary drag. Despite its small footprint, it performs exactly as a dive beacon should—providing a reliable reference point that is easy to locate in challenging conditions. Overall, I highly recommend the ORCATORCH SD03 for recreational, technical, public safety, and instructional diving. Its excellent underwater visibility, multiple color options, emergency signaling capability, and compact design make it a versatile and dependable piece of equipment. The ability to assign unique beacon colors to students has noticeably improved my dive team management, and it has earned a permanent place in my dive gear. Photo shows the beacon on a reel sitting at 300’ from 210’ still visible

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*Product available on Desertcart Slovakia*
*Store origin: SK*
*Last updated: 2026-08-30*