Could you run this off two cr123 batteries? I know may lights like this will if the internal voltage regulator has a wide enough range.

Yes you can use 2 of the shorter batteries on this light. Shorter time before recharging but brighter.

It says 3.7 volts but how many amp battery for flashlight?

It has a unique battery. Very powerful and long lasting 18650 li-ion battery. I have only charged it once and it is still going strong.

What size batteries does this require?

By Carmen… on August 11, 2023

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UltraFire Blue Light Flashlight Hunting Torch 256 Yard 470 nm Wavelength Professional Blue Beam Flashlight Fishing Hunting H-B3

Product ID: 255466482

Details

Colour
Blue
Light source type
LED
Material
Aluminum
Power source
1 * 18650
Special features
Waterproof

📏256 yards beam reach

🔵470nm pure blue wavelength

🌧️IPX65 rain resistant

€ 86.77

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Sold byAmazon CroatiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🔦 Own the night with precision blue power!

LONG DISTANCE ILLUMINATION - Illuminate up to 256 yards with a wide 100° beam angle for expansive night visibility.
EFFORTLESS ONE PRESS CONTROL - Single-mode tailcap switch delivers instant, steady blue light—no distracting mode cycling.
RUGGED TACTICAL GRADE BUILD - Aircraft-grade anodized aluminum body resists scratches and corrosion for reliable outdoor use.
WEATHERPROOF FOR ANY ADVENTURE - IPX65 rating ensures performance in heavy rain—your go-to flashlight rain or shine.
PRECISION BLUE BEAM FOR NIGHT OPS - Dedicated 470nm blue LEDs highlight fluorescent markers and wounded game with unmatched clarity.

The UltraFire H-B3 is a professional-grade blue light flashlight engineered for night fishing and hunting. Featuring three 470nm blue LEDs, it projects a powerful beam up to 256 yards with a wide 100° coverage. Its rugged aircraft-grade aluminum body and IPX65 water resistance make it durable for harsh outdoor conditions. Simple one-press operation ensures steady illumination without mode confusion. Battery not included.

Specifications

ASIN	B07BNJ3VFG
Additional Features	Waterproof
Batteries are Included	No
Battery Description	1 x 18650 3.7V battery (not included)
Battery Type	Lithium Ion
Beam Angle	100 Degrees
Best Sellers Rank	#124,241 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #1,613 in Handheld Flashlights
Brand Name	ULTRAFIRE
Bulb Base	Wedge
Color	Blue
Customer Reviews	4.4 4.4 out of 5 stars (162)
Finish Types	Matte
Included Components	Battery
Item Dimensions D x W x H	157D x 44W x 27H millimeters
Item Dimensions L x W x H	15.7L x 4.4W x 2.7H centimeters
Item Weight	0.42 Pounds
Light Output Maximum	283 Lumens
Light Path Distance	256 Yards
Light Source Special Features	100% pure blue light, 470 nm wavelength, efficient power usage
Light Source Type	LED
Manufacturer	ULTRAFIRE
Manufacturer Part Number	h-b3
Material Type	Aluminum
Model Number	H-B3
Mounting Type	Handheld
Number of Batteries	1 Lithium Ion batteries required.
Number of Items	1
Number of Light Sources	3
Number of Packs	1
Power Source	1 * 18650 battery
Runtime	47 minutes
Shape	Cylindrical
Size	6.21.751.05 inches
Specification Met	IPX65
Style Name	Modern
UPC	764823797225
Unit Count	1.0 Count
Voltage	3.7 Volts
Water Resistance Level	Waterproof
White Brightness	283 Lumens

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€ 86.77

Duties & taxes included

In stock

Sold byAmazon CroatiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Croatia.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Reema J.

Perfect platform for hard-to-find items. Delivery was prompt.

1 month ago

Sneha T.

Received my product in pristine condition. Great service overall.

1 month ago

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