The FOTOCORE F4 is a compact focus and creative light designed for macro and close-focus wide-angle underwater photography. Delivering up to 5,600 lumens from a 3×18650 battery pack, it runs 9 modes including white, red, blue, and optional UV via dual buttons with stepless dimming — giving you both creative colour control and practical focusing capability in one lightweight package. The 120° beam angle is broad enough to double as a video fill light when needed. Weighing just 460g, the F4 won’t throw off your rig balance.
- Model: F4
- SKU: F4 Black
- Output: Up to 5,600 lumens
- Modes: 9 (dual button, stepless dimming)
- Light Modes: White, Red, Blue (+ optional UV)
- Strobe Mode: Yes (fibre cable sync)
- Battery: 3×18650 pack
- Beam Angle: 120°
- Color Temperature: 5600K
- CRI: Ra96
- Waterproof Depth: 100m
- Dimensions: 137×46×56mm
- Weight: 460g
- Colors: Black / Blue
The standout feature is its strobe mode, which can be synced via fibre cable — making the F4 a perfect companion light for compact cameras that can’t accept a full-size strobe. CRI of Ra96 at 5600K ensures colours pop on camera just as they look through the viewfinder. Rated to 100m with a 137×46×56mm body that fits easily on short arms. Available in Black and Blue.
FOTOCORE Compact Focus Light F4
S$560.00
Specifications
In-stock orders are usually processed the same working day. If an item isn’t on the shelf, we replenish it — typically within 2–4 days — and send your order out the moment it arrives.
Made-to-order gear, such as certain Nauticam ports and extensions, takes longer — we’ll confirm the lead time with you before you commit.
Need it urgently? Tell us before you place the order and we’ll be honest about what we can commit to.
We don’t sit on orders. If something unforeseen slows yours down — a stock gap, a courier hiccup — we’ll tell you early and do our best to put it right.
We ship within Singapore by courier and worldwide via tracked international services. Import duties and local taxes are the responsibility of the recipient.
Products carry their manufacturer’s warranty (Nauticam, AOI, Kraken and others). If you run into an issue, reach out and we will help you with the claim.
For warranty claims and servicing, submit a repair request — or see how the process works on our equipment repair service page.
If we sent the wrong item or it arrived faulty, contact us and we will make it right.
Full details are on our FAQ page.














