--- product_id: 445882239 title: "SD03 Dive Signal Light 4-Color-in-1 (Blue, Red, White, Green) 8 Modes Scuba Diving Beacon with Constant and Flashing Modes, Mini Scuba Tank Marker Light for 150M Underwater Diving" brand: "orcatorch" price: "¥25763" currency: JPY in_stock: true reviews_count: 5 category: "Orcatorch" url: https://www.desertcart.jp/products/445882239-sd03-dive-signal-light-4-color-in-1-blue-red store_origin: JP region: Japan --- # 150m waterproof depth 100 lumens bright 4 colors, 8 modes SD03 Dive Signal Light 4-Color-in-1 (Blue, Red, White, Green) 8 Modes Scuba Diving Beacon with Constant and Flashing Modes, Mini Scuba Tank Marker Light for 150M Underwater Diving **Brand:** orcatorch **Price:** ¥25763 **Availability:** ✅ In Stock ## Summary > 🌈 Light up your dive, lead the pack below! ## Quick Answers - **What is this?** SD03 Dive Signal Light 4-Color-in-1 (Blue, Red, White, Green) 8 Modes Scuba Diving Beacon with Constant and Flashing Modes, Mini Scuba Tank Marker Light for 150M Underwater Diving by orcatorch - **How much does it cost?** ¥25763 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/445882239-sd03-dive-signal-light-4-color-in-1-blue-red) ## 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 - • **Pro-Grade Durability:** IPX68 rated to 150m depth with impact-resistant, corrosion-proof shell—built to brave the deepest, darkest dives. - • **Ultra-Long 250h Runtime:** Dive multi-day without battery worries thanks to a powerful, tool-free replaceable battery system. - • **360° Multi-Color Visibility:** Instantly spot your dive team with 4 vibrant colors and 8 versatile lighting modes tailored for positioning, signaling, and rescue. - • **Glove-Friendly Smart Control:** Effortlessly switch colors and modes underwater with a high-torque rotary switch and memory function—no fumbling in thick gloves. - • **Featherlight & Secure Mounting:** At just 50g, it clips seamlessly to your BCD or tank strap, staying stable without adding bulk or shake. ## Overview The OrcaTorch SD03 Dive Signal Light is a compact, 4-color LED beacon offering 8 lighting modes with 100 lumens brightness and 360° shadowless illumination. Designed for professional divers, it features a glove-friendly rotary switch with memory, a lightweight 50g build, and an IPX68 waterproof rating for reliable use up to 150 meters underwater. With up to 250 hours runtime and easy battery replacement, it’s the ultimate multi-functional dive marker for safety, signaling, and team coordination. ## Description The OrcaTorch SD03 is a compact and multifunctional 4-colour dive beacon. 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 mode can be chosen by rotating the body. The SD03 can be used as an underwater or outdoor signal light, dive backup light, outdoor regular light, etc. Its shell is made of plastic which provides good light penetration. With excellent waterproofness, it will function up to 150m underwater. There is no doubt that the SD03 is 1 of the best choices for diving or outdoor lighting. Review: Must have for night dives - This is a must have for night dives. You and your buddy will know where you are at all times. Having different colours to identify each buddy pear. You shouldn’t lose them with this. Review: Desilusión del producto - Desafirunadamente mi opinón es mala al producto ya que tenía buenas referencias por lo que hice la compra, desafortunadamente no funcionó la lámpara por lo que la valoración es mala. Ojalá que sus estándares de calidad mejoren. ## Features - 【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 & Dual Battery Compatibility】For a max 250-hour runtime, no frequent replacement for multi-day diving; Tool-free battery change by twisting the light head. - 【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 150M for Deep Dive Reliability】 Professional IPX68 waterproof withstands 150m deep water pressure; 1.5m impact-resistant and seawater corrosion-proof high-transparency shell ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B09TFL2918 | | Amperage | 3 Amps | | Are Batteries Included | Yes | | Battery Description | Alkaline | | Brand | ORCATORCH | | Bulb Shape Size | FC8 | | Colour | Green,Red,White | | Country of Origin | USA | | Customer Reviews | 4.6 out of 5 stars 171 Reviews | | Enclosure Material | Plastic | | Finish Type | Plastic | | Finish Types | Plastic | | Included Components | Light kit inlcuded | | Item Dimensions L x W x H | 7.6L x 3W x 1H Centimeters | | Item Type Name | dive light | | Item Weight | 50 g | | 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 | | Material | 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 Lights | 4 | | Power Source | Battery Powered | | Shade Material | Plastic | | Shape | Round | | Specification Met | CE | | Style | Compact | | Voltage | 1.5 Volts | | Wattage | 2 Watts | ## Product Details - **Colour:** Green,Red,White - **Shape:** Round - **Material:** Plastic - **Finish Type:** Plastic - **Light Source Type:** Light Emitting Diode ## Images ![SD03 Dive Signal Light 4-Color-in-1 (Blue, Red, White, Green) 8 Modes Scuba Diving Beacon with Constant and Flashing Modes, Mini Scuba Tank Marker Light for 150M Underwater Diving - Image 1](https://m.media-amazon.com/images/I/51+F2dySxkL.jpg) ![SD03 Dive Signal Light 4-Color-in-1 (Blue, Red, White, Green) 8 Modes Scuba Diving Beacon with Constant and Flashing Modes, Mini Scuba Tank Marker Light for 150M Underwater Diving - Image 2](https://m.media-amazon.com/images/I/71NOrXFz+KL.jpg) ![SD03 Dive Signal Light 4-Color-in-1 (Blue, Red, White, Green) 8 Modes Scuba Diving Beacon with Constant and Flashing Modes, Mini Scuba Tank Marker Light for 150M Underwater Diving - Image 3](https://m.media-amazon.com/images/I/71iRrMArSuL.jpg) ![SD03 Dive Signal Light 4-Color-in-1 (Blue, Red, White, Green) 8 Modes Scuba Diving Beacon with Constant and Flashing Modes, Mini Scuba Tank Marker Light for 150M Underwater Diving - Image 4](https://m.media-amazon.com/images/I/81KFOxxjdOL.jpg) ![SD03 Dive Signal Light 4-Color-in-1 (Blue, Red, White, Green) 8 Modes Scuba Diving Beacon with Constant and Flashing Modes, Mini Scuba Tank Marker Light for 150M Underwater Diving - Image 5](https://m.media-amazon.com/images/I/61HB+HHCqJL.jpg) ## Questions & Answers **Q: How long will the main white light last on one AA battery?** A: I did 3 dives with it...it was still bright! **Q: What's the max depth on this light?** A: Hi, this scuba marker light can be used underwater 150m. **Q: Can you change light colors during a dive?** A: Yes this light is outstanding! **Q: Is this light water activated?** A: No, it is not water activated. The light is turned on by twisting the base slightly. Turning it off and back on quickly, changes the color of the Led and selects strobe or constant on. This is an extremely nice marker light that also has a white flashlight. ## Customer Reviews ### ⭐⭐⭐⭐ Must have for night dives *by M***K on 7 February 2025* This is a must have for night dives. You and your buddy will know where you are at all times. Having different colours to identify each buddy pear. You shouldn’t lose them with this. ### ⭐ Desilusión del producto *by C***N on 21 August 2023* Desafirunadamente mi opinón es mala al producto ya que tenía buenas referencias por lo que hice la compra, desafortunadamente no funcionó la lámpara por lo que la valoración es mala. Ojalá que sus estándares de calidad mejoren. ### ⭐⭐⭐⭐⭐ OrcaTorch SD03 Review *by M***Y on 6 August 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. --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.jp/products/445882239-sd03-dive-signal-light-4-color-in-1-blue-red](https://www.desertcart.jp/products/445882239-sd03-dive-signal-light-4-color-in-1-blue-red) --- *Product available on Desertcart Japan* *Store origin: JP* *Last updated: 2026-07-07*