£10.99
Out of stock
Our entire team at Gerry’s are all experienced anglers and can help you choose the correct tackle for any fishing situation. Please drop us a message or give us a call if you need any help.
You can return unused standard items within 30 days for exchange or refund.
We check our prices weekly to ensure we can combine our fabulous service with the best prices. If you find an item cheaper and in stock somewhere else, drop us a a message in the chat box and we can see what we can do.
This item is available for next day delivery. You can pick this in the checkout.
We offer free post to any mainland UK address with a basket of more than £80. We also send all over the world and the best way to find out how much postage you will pay is in our checkout. Add the items to your basket and then add your address. Our checkout will automatically calculate your total.
We have come from a tiny fishing store and grown into one of the biggest fishing tackle retailers in the UK winning countless awards over the years. We are still a family business offer fabulous service online and in-store.
Spread the cost of larger orders over 6 or 12 month 0% APR. We also offer longer terms with APR charges via V12 finance. Available in the checkout.
You can make your next purchase a little easier on the wallet by splitting the total into 3 payments by using Klarna payments in the checkout.
“Need advice on tackle? Ask Bob”
Powered by a deep library of angling knowledge, the experience of thousands of anglers & indepth technical product specs. Available 24/7. Just Ask.
The BCCT Underwater Case is a compact, multicolour flashing attractor designed to draw fish toward your bait or jig. Built on the proven BCCT light system, it features a sealed tube for reliable underwater performance from boat or shore. Its flashing, colour-changing sequence enhances visibility in deep or low-light conditions, making it ideal for night fishing. Effective for a wide range of species and highly useful when paired with a squid jig, it boosts attraction and increases your chances of a take.
In the dark depths or during murky night sessions, visual stimulation is often the key to triggering a strike. The MK70 provides a constant, rhythmic pulse of light that mimics the bioluminescence of small prey or simply piques the curiosity of predatory fish. Whether you are fishing the wrecks in deep water or casting from a pier, this small but mighty attractor is your best bet for making sure your rig is the one that gets noticed.
Multicolour Flash Technology: Cycles through a spectrum of colours to trigger a predatory response from various species.
Proven Reliability: Based on the legendary BCCT light system, ensuring the unit holds up under the pressure of deep-water environments.
Versatile Mounting: Easily incorporated into traces for boat fishing or attached directly above squid jigs for shore-based cephalopod sessions.
Durable Sealed Construction: Designed for repeated use, with a secure housing that keeps water out and the light shining bright.
Compact 50mm Profile: Minimal drag and bulk, so it won’t kill the action of your lures or make your rigs cumbersome to cast.
| Feature | Details |
| Brand | BCCT |
| Model | MK70 Underwater Case |
| Length | 50mm |
| Light Type | LED Multicolour Flashing |
| Pack Size | Single Pack (1 unit) |
| Environment | Saltwater & Freshwater (Boat or Shore) |
| Target Species | Squid, Whiting, Bass, Cod, and Deep-Water Predators |
| Housing | Precision-sealed protective tube |
Night-Time Squid Jigging: Mount the MK70 approximately 12 to 18 inches above your favorite squid jig. The flashing light draws squid in from a distance, while the jig provides the target for the strike.
Deep-Water Wreck Fishing: When fishing for Cod or Ling in 100ft+ of water, light penetration is minimal. Adding an MK70 to your pimp-rig or pultry trace can be the difference between a blank and a haul.
Murky Shore Sessions: If you’re fishing into heavy surf or discoloured water after a storm, the visual pulse helps fish find your bait by sight when scent alone might not be enough.
To get the absolute best out of the MK70, don’t just tie it on anywhere. We recommend placing it between two clear beads on your trace to give it a bit of “rattle” and movement. If you’re targeting big predators in deep water, try pairing the multicolour flash with a bit of luminous “goo” or glow-in-the-dark beads. The combination of the active flash and the passive glow is a “double-whammy” that fish simply can’t ignore!
Is the battery replaceable?
The MK70 is a sealed unit designed for maximum water resistance. While the battery is long-lasting, once the unit reaches the end of its life, it is replaced as a whole to ensure the seal remains 100% watertight.
How deep can I take this light?
The BCCT system is built for the rigours of sea fishing. It is perfectly capable of handling standard boat fishing depths and the pressure found on wrecks around the UK coast.
Does the flashing light spook fish?
In most cases, quite the opposite! While very shallow, clear-water fish might be cautious, in the conditions this was designed for—deep, dark, or murky water—the light acts as a curiosity trigger that draws fish toward your hook
“Need advice on tackle? Ask Bob”
Powered by a deep library of angling knowledge, the experience of thousands of anglers & indepth technical product specs. Available 24/7. Just Ask.
Our entire team at Gerry’s are all experienced anglers and can help you choose the correct tackle for any fishing situation. Please drop us a message or give us a call if you need any help.
You can return unused standard items within 30 days for exchange or refund.
We check our prices weekly to ensure we can combine our fabulous service with the best prices. If you find an item cheaper and in stock somewhere else, drop us a a message in the chat box and we can see what we can do.
This item is available for next day delivery. You can pick this in the checkout.
We offer free post to any mainland UK address with a basket of more than £80. We also send all over the world and the best way to find out how much postage you will pay is in our checkout. Add the items to your basket and then add your address. Our checkout will automatically calculate your total.
We have come from a tiny fishing store and grown into one of the biggest fishing tackle retailers in the UK winning countless awards over the years. We are still a family business offer fabulous service online and in-store.
Spread the cost of larger orders over 6 or 12 month 0% APR. We also offer longer terms with APR charges via V12 finance. Available in the checkout.
You can make your next purchase a little easier on the wallet by splitting the total into 3 payments by using Klarna payments in the checkout.




Penn Chest Size Guide
Small (36″-37″)
Medium (38″-40″)
Large (42″-44″)
XLarge (46″-48″)
XXLarge (50″-52″)
Wader Waist Guide
Small (28″-30″)
Medium (30″-33″)
Large (34″-37″)
XLarge (37″-39″)
XXLarge (39″-42″)
3XLarge (42″-45″)
Kinetic/Westin Chest Size Guide
Small (36″-37″)
Medium (38″-40″)
Large (42″-44″)
XLarge (46″-48″)
XXLarge (50″-52″)
3XLarge (54″-56″)
Grundens Chest Size Guide
Small (36″-37″)
Medium (38″-40″)
Large (42″-44″)
XLarge (46″-48″)
XXLarge (50″-52″)
3XLarge (54″-56″)
Vass Chest Size Guide
Small (36″-38″)
Medium (38″-41″)
Large (42″-44″)
XLarge (45″-46″)
XXLarge (47″-48″)
3XLarge (49″-51″)
Trakker Chest Size Guide
Small (38-40″)
Medium (41-43″)
Large (44-46″)
Xlarge (47-49″)
XXLarge (50-52″)
XXXLarge (53-55″)
Korda Chest Size Guide
Small (36″-38″)
Medium (38″-41″)
Large (42″-44″)
XLarge (45″-46″)
XXLarge (47″-48″)
3XLarge (49″-51″)
Guy Cotten Chest Size Guide
Small (86 – 94cm)
Medium (94 – 102cm)
Large (102 – 110cm)
XLarge (110 – 124cm)
XXLarge (124 – 134cm)
3XLarge (134 – 154cm)
Fox Chest Size Guide
Small (36″-38″)
Medium (39″-41″)
Large (42″-44″)
XLarge (45″-47″)
XXLarge (48″-50″)
3XLarge (51″-54″)
4XLarge (55″-60″)
Nash Chest Size Guide
Small (36″-38″)
Medium (39″-41″)
Large (42″-44″)
XLarge (45″-47″)
XXLarge (48″-50″)
3XLarge (51″-54″)
4XLarge (55″-60″)
Aqua Chest Size Guide
Small (38-40″)
Medium (41-43″)
Large (44-46″)
Xlarge (47-49″)
XXLarge (50-52″)
XXXLarge (53-55″)
Guru Chest Size Guide
Small (36″-38″)
Medium (38″-41″)
Large (42″-44″)
XLarge (45″-46″)
XXLarge (47″-48″)
3XLarge (49″-51″)
Preston Chest Innovations Size Guide
Small (36″-38″)
Medium (38″-41″)
Large (42″-44″)
XLarge (45″-46″)
XXLarge (47″-48″)
3XLarge (49″-51″)
Trouser Waist Guide (Inches)
Small – 28″ – 32″
Medium 32″ – 34″
Large – 34″ – 36″
X-Large 36″ – 38″
XX-Large – 38″ – 42″
XXX-Large 42″ – 46″
XXXX-Large 46″ – 52″