Bigblue TL4000P 4000-Lumen Narrow-Beam Canister Light - EOS Sidemount, side view, in black

Bigblue TL4000P 4000-Lumen Narrow-Beam Canister Light - EOS Sidemount, battery pack

Bigblue TL4000P 4000-Lumen Narrow-Beam Canister Light - EOS Sidemount, charger

Bigblue TL4000P 4000-Lumen Narrow-Beam Canister Light - EOS Sidemount, side view, in blue

Bigblue TL4000P 4000-Lumen Narrow-Beam Canister Light - EOS Sidemount, side view, in pink

Bigblue TL4000P 4000-Lumen Narrow-Beam Canister Light - EOS Sidemount

$2,219.99

Max output: 4000 lm
Beam angle: 8° narrow
Burn time: 12–120 hrs
Modes: 4 levels

Color: Black

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Description

The TL4000P EOS23 Sidemount is a complete technical canister light: the TL4000P EO light head, the EOS23 battery canister and the cable that joins them. The head puts 4000 lumens into a tight 8° beam for maximum penetration, with a smooth peripheral spill. Bigblue lists it as a Tech primary light.

The EOS23 canister holds three BATCELLEOCANISTER Li-ion batteries of 88.06 Wh each, in a configuration Bigblue lists as airline approved. That gives you 12 hours at 4000 lumens, 24 at 2000, 48 at 1000 and 120 hours at 400 lumens.

The canister has a single cable and a mechanical on/off switch. Bigblue built the EOS23 to power heated gear from its Powered Heat Sync series as well as a light. To run a light and a heated vest at the same time, look at the two-cable EOD23 version.

This is the sidemount version, set up for divers on a sidemount rig. The sidemount version has the same specs. The head rides on a 1.3 m cable and mounts on the included Adjustable Goodman Handle. A push-button switch with a battery indicator on the head steps through four power levels.

Head and canister are anodized aluminum alloy with tempered optical glass, tested to 150 meters. The charger and a PC107A protective case are in the box. Bigblue makes it in Classic Black, Royal Blue and Hot Pink.

TL4000P EO light head
EOS23 sidemount canister and cable
Battery pack (3 x BATCELLEOCANISTER)
Charger
Adjustable Goodman Handle AJGHA-01C
Protective case PC107A
Two spare O-rings
Silicone lube
Owner’s manual

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Power modes

Mode	Output	Burn time
Level IV	4000 lm	12 hrs
Level III	2000 lm	24 hrs
Level II	1000 lm	48 hrs
Level I	400 lm	120 hrs

Burn times are Bigblue’s figures for the EOS23 canister.

Product Features

Tight 8° beam with a soft spill
4000 lumens in an 8° beam reaches far down a passage or wreck corridor, with a smooth peripheral spill around the hotspot.
12 to 120 hours of burn time
Three 88.06 Wh batteries run the head for 12 hours at 4000 lumens and 120 hours at 400 lumens.
Powers heated gear too
The EOS23 canister can also supply Bigblue’s Powered Heat Sync heated gear. It has one cable; for a light and a heated vest at once, choose the EOD23.
Airline-approved batteries
Bigblue lists the three BATCELLEOCANISTER batteries as an airline-approved configuration, so the canister can travel with you.
Set up for sidemount
This version is built for a sidemount rig. The head rides on a 1.3 m cable, with a push-button switch and battery indicator.
Goodman handle and case included
The Adjustable Goodman Handle AJGHA-01C and a PC107A protective case come in the box.

TL4000P: EOS23, EOD23 or EOS12 canister?

All three use the TL4000P EO head (4000 lumens, 8° beam, four levels) on a 1.3 m cable, with airline-approved batteries, backmount or sidemount, tested to 150 m.

TL4000P EOS23

One cable and full-size batteries for the longest burn.

12–120 hrs burn time
3 x 88.06 Wh batteries
Canister 68 x 290 mm, 2300 g

TL4000P EOD23

Two independent cables: run the light and a heated vest at once.

12–120 hrs burn time
3 x 88.06 Wh batteries
Canister 68 x 290 mm, 2415–2478 g

TL4000P EOS12

One cable, compact canister. Patrick Widmann Signature Series.

7–70 hrs burn time
3 x 50.32 Wh batteries
Canister 57 x 300 mm, 1650 g

Is it right for you?

Who it’s for

Sidemount divers
Cave divers
Technical divers
Tech primary light

Best for

Long cave dives
Wreck penetration
Cold-water tech dives

Power modes

Mode	Output	Burn time
Level IV	4000 lm	12 hrs
Level III	2000 lm	24 hrs
Level II	1000 lm	48 hrs
Level I	400 lm	120 hrs

Burn times are Bigblue’s figures for the EOS23 canister.

Add-ons

Specifications

Output

Max output: 4000 lm
Modes: 4 levels
Light source: 3 x LED
Power levels: 4000 · 2000 · 1000 · 400 lm
Color temperature: 6500K

Beam

Beam angle: 8° narrow
Beam type: Narrow spot with smooth peripheral spill

Power

Burn time: 12–120 hrs
Battery: 3 x BATCELLEOCANISTER Li-ion, 88.06 Wh each
Air travel: Airline-approved battery configuration
Burn time by level: 12 · 24 · 48 · 120 hrs (level IV to I)
Charge time: 5–6 hrs (Bigblue suggested)
Canister cables: 1
Head switch: Push button with battery indicator
Canister switch: Mechanical on/off switch
Cable length: 1.3 m (4.3 ft)

Build

Mount: Sidemount configuration
Casing: Anodized aluminum alloy
Front glass: Tempered optical glass
Max depth: 150 m tested (492 ft)
Light head size: Dia. 63 x L 80.6 mm (2.5 x 3.2 in)
Canister size: Dia. 68 x L 290 mm (2.7 x 11.4 in)
Light head weight in air: 439 g (15.5 oz)
Canister weight in air: 2300 g (5.1 lb) with batteries
Light head buoyancy in seawater: -211 g (-7.4 oz)
Canister buoyancy in seawater: -1186 g (-2.6 lb) with batteries
Colors: Classic Black, Royal Blue, Hot Pink
Bigblue category: Tech primary

Product Details

Shipping & Returns

Free standard shipping on orders over $50
Free 2-day shipping on orders over $300
Standard Ground delivery in 3–5 business days
Most orders process within 1 business day
Free returns within 60 days — buyer covers return shipping unless it's our error
Free return shipping on exchanges

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Questions? Email info@sbaquatics.com or see our full Shipping & Returns Policy.

Frequently Asked Questions?

What’s the difference between EOS23, EOD23 and EOS12?

All three use the same TL4000P EO head. EOS23: one cable, three 88.06 Wh batteries, 12–120 hours. EOD23: the same batteries with two independent cables. EOS12: one cable, three 50.32 Wh batteries, 7–70 hours, and a lighter 1650 g canister.

How long does it run on one charge?

12 hours at 4000 lumens, 24 hours at 2000, 48 hours at 1000 and 120 hours at 400 lumens.

Can I fly with it?

Bigblue lists the battery configuration as airline approved: three BATCELLEOCANISTER batteries of 88.06 Wh each. Check your airline’s rules before you travel.

How long does it take to charge?

Bigblue suggests 5–6 hours for the BATCELLEOCANISTER batteries.

Can it power a heated vest?

Yes. Bigblue designed the EOS23 canister to supply its Powered Heat Sync heated gear as well as a light. It has one cable, so to run the light and a heated vest at the same time you’d want the two-cable EOD23.

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