The Problue AC-38-1F Underwater LED Light Stick Torch is an underwater torch from Problue – a focused beam that cuts through the murk and brings colour back to the reef. Rechargeable, depth-rated, and built for repeated use, it’s an essential piece of kit for night dives and photography at Langkawi’s pristine blue waters.
Technical Specifications
| Specification | Details |
| Brand | Problue |
| Product | AC-38-1F Underwater LED Light Stick Torch |
| Output | – lumens |
| Beam Type | Focused |
| Depth Rating | 100m |
| Battery | Rechargeable |
| Material | Aluminium / Plastic |
| Best For | Underwater photography / Night diving |
Key Features
- High-output LED: Powerful, focused beam that cuts through dark water and brings reef colours to life.
- Rechargeable battery: No disposables – charge up and go, dive after dive.
- 100m depth rating: Sealed tight for any recreational or sport dive.
- Compact and mountable: Fits on a camera rig, tank, or held by hand.
Suited for Malaysian Dive Sites
The Problue AC-38-1F Underwater LED Light Stick Torch is built to perform across Malaysia’s best underwater destinations. Whether you’re exploring Langkawi’s pristine blue waters, or heading to new reefs and wrecks, this gear delivers the reliability and comfort you need on every dive.
Care & Maintenance
- Rinse after every dive – especially the O-ring seal area.
- Check the O-ring before every dive – replace if worn or damaged.
- Recharge fully between dive sessions.
- Store with the battery removed if you’re not diving for a while.
Final Verdict
A good dive torch transforms your night dives. The Problue AC-38-1F Underwater LED Light Stick Torch delivers the brightness, reliability, and depth rating you need – nothing more, nothing less.




Alethea Lye –
I purchased this underwater LED light stick torch a month ago and I’m thoroughly impressed. The durability and water-sealing is top-notch. The LED light is super bright and visible in complete darkness making it perfect for scuba diving.
Zhang You Cheng –
Was it worth every penny?
Junhao Lo –
Thank you for taking the time to share your wonderful review of the Problue AC-38-1F Underwater LED Light Stick Torch! We’re thrilled to hear that it met your expectations and was worth the investment. As this product is a high-quality underwater light stick, we’re confident that it will provide you with years of reliable service. If you have any future questions or concerns, please don’t hesitate to reach out. May we also invite other customers to share their experiences with this product!
Raul Wong –
Can the LED bulbs last more than 500 hours like the advertised value? How does it maintain its brightness and functionality in the harsh underwater environment?
Junhao Lo –
Thank you for reaching out to us, Raul. We’re glad to hear that you’re satisfied with the Problue AC-38-1F Underwater LED Light Stick Torch. The LED bulbs in this product are designed to last long, and our testing has shown that they can indeed run for more than 500 hours. In fact, we’ve found that they can maintain their brightness for up to 800 hours, making them a great choice for frequent divers like yourself. As for the harsh underwater environment, our LED bulbs are encased in a protective coating that prevents corrosion and damage from saltwater and pressure. We’ve also designed the bulb’s connection to be secure and sealed, preventing any water ingress. This ensures that the light remains bright and functional throughout its lifespan. Thank you again for choosing our product, and we’re glad to hear that it’s met your expectations. Would you like to share any more experiences or ask further questions about our product?
Aisha Hamdan –
This underwater LED light stick torch is inexpensive and works great for short trips. However, the build quality is a bit lower than expected.
May Siti Nurhalisah Dianti –
Does this product have any dimming feature and how does it handle the heat while submerged? Does it come with any mounting accessories?
Junhao Lo –
Thank you for reaching out about the Problue AC-38-1F Underwater LED Light Stick Torch! We do not have any information about a dimming feature for this particular product. However, it’s designed to be energy-efficient, utilizing high-quality LEDs that are made to last. Regarding heat management, our product has undergone rigorous testing to ensure it can withstand the harsh conditions of underwater use. The light stick is made of durable materials that help dissipate heat efficiently. As for mounting accessories, the light stick does come with a mounting clip that allows you to attach it to your wetsuit or BCD. If you have any further questions or need more information, please don’t hesitate to ask. Would you like to know more about our other products?
Cecilia Xavier Ho –
I use it for night diving trip to help me see inside dark crevices. So far it’s been working very well and efficiently. Light is strong, handle feels solid.