What size/type of rechargeable battery does this use?

Wind fire LC18650 4000 mAh 3.7V Lithium-ion battery

what attachment can be used to attach to a 1" ball

There is no threaded hole to add any type of ball but Ultralight Control Systems makes an AC-USL that could work. It's a saddle with foam to sit the light in and a Velcro strap secures it. The saddle is connected to a ball.

WINDFIRE Dive Light Scuba Diving Flashlight, Super Bright Rechargeable Waterproof Torch with Power Indicator, 3 Modes Underwater Lights, Scuba & Snorkeling Safety Dive Lights for Night Diving

WINDFIRE Dive Light Scuba Diving Flashlight, Super Bright Rechargeable Waterproof Torch with Power Indicator, 3 Modes Underwater Lights, Scuba & Snorkeling Safety Dive Lights for Night Diving

Product ID: 174133607

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Details

Special Feature
Adjustable
Color
Black-TS08
Power Source
Battery
Light Source Type
LED
Material
Aluminum

🌊IPX8 waterproof & corrosion resistant

💡5500K ultra bright LED

🔋Up to 4 hrs runtime with power indicator

Description

🌟 Illuminate your underwater world like a pro — don’t just dive, dominate the depths!

CUT THROUGH THE DEEP - 5500K focused beam with 150m range restores true underwater colors for unmatched visibility.
DIVE SMART WITH MODES - Switch effortlessly between High, Low, and SOS lighting modes tailored for every underwater scenario.
BUILT TO BRAVE THE DEPTHS - Aerospace-grade aluminum body ensures rugged durability and corrosion resistance in extreme conditions.
NEVER GET LEFT IN THE DARK - Real-time battery power indicator keeps you informed and confident on every dive.
MORE THAN JUST A DIVE LIGHT - Perfect for scuba, snorkeling, underwater photography, and emergency outdoor use—your all-in-one adventure companion.

The WINDFIRE TS08 Dive Light is a compact, rechargeable, and ultra-bright underwater flashlight featuring a 5500K LED beam with a 150-meter reach. Engineered with aerospace-grade aluminum and IPX8 waterproof rating, it offers 3 versatile lighting modes and a built-in power indicator for reliable, long-lasting performance during scuba diving, snorkeling, and underwater exploration.

Specifications

Special Feature	Adjustable Strap/Lightweight/Portable/Compact, Battery Indicator/3 Lighting Modes/High Power/Long Range, Weatherproof/Waterproof/Impact Resistant
Color	Black-TS08
Power Source	Battery Powered
Light Source Type	LED
Material	Aluminum
White Brightness	5000 Lumens
Included Components	1 x Instructions, 1 x Storage Box, 1 x WINDFIRE TS08 Dive Light Underwater Flashlight, 2 x Waterproof O-rings, Lanyard
Product Dimensions	5.11"D x 1.15"W x 1.06"H
Voltage	3.7 Volts
Light Path Distance	150 Meters
Battery Cell Composition	Lithium Polymer
Item Weight	4.16 ounces
Number of Batteries	1 Lithium Polymer batteries required. (included)
Water Resistance Level	Waterproof
Warranty Type	Limited Warranty
Brand	WINDFIRE
Brightness	5000 Lumen
Battery Description	Lithium
Runtime	3 hours
Style	Modern
Bulb Base	GX5.3
Finish Type	Aluminum
Specification Met	IPX8 waterproof
Mounting Type	Handheld
Recommended Uses For Product	WINDFIRE dive light scuba diving flashlight can be used for diving, night snorkeling, under water photography, lobster hunting, emergency, dog walking, cycling and other outdoor activities..
Manufacturer	WINDFIRE
Size	Black-TS08
UPC	702215495960
Part Number	DIV_TS08_SBA
Item Weight	4.2 ounces
Item model number	TS08
Batteries	1 Lithium Polymer batteries required. (included)
Item Package Quantity	1
Shape	Round
Finish types	Aluminum
Number of Lights	1
Specific Uses	WINDFIRE dive safety light is perfect for diving, salvage, snorkeling, scuba diving, underwaterprooof photography, swimming, fishing.
Special Features	Adjustable Strap/Lightweight/Portable/Compact, Battery Indicator/3 Lighting Modes/High Power/Long Range, Weatherproof/Waterproof/Impact Resistant
Shade Material	aluminum
Batteries Included?	Yes
Batteries Required?	Yes
Bulb Features	flashing
Color Temperature	5500 Kelvin