flashlight led aaa
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US $20.99
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Energizer INRUB22EH 2 AAA LED Industrial Flashlight $11.03 Energizer INRUB22EH 2 AAA LED Industrial Flashlight Energizer INRUB22EH 2 AAA LED Industrial Flashlight Features: Flashlight 11 lumens 16 hour run time Folding stand Rubber grip 1 LED Includes two AAA alkaline batteries |
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Energizer ENRUB22E 2 AAA LED Flashlight $11.03 Energizer ENRUB22E 2 AAA LED Flashlight Energizer ENRUB22E 2 AAA LED Flashlight Features: Flashlight 11 lumens 16 hour run time Folding stand Rubber grip 1 LED Includes two AAA alkaline batteries |
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Dorcy International AAA 4 LED Flashlight 411502 $25.54 Flashlight. 4 bright LED lights. 3 AAA batteries included. Length: 2.1. Width: 7.63. Height: 5.13 |
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Energizer Energizer Rubbr Aaa Led Flashlight ENRUB22E $7.47 Rubbr aaa led flashlight The Energizer rubber LED flashlight features a nonslip textured handle with built-in stand for hands-free use, and a large push-button switch for use with gloves LED technology that never needs replacing Packed with long-lasting Energizer batteries ?AAA? Brand #: Energizer ENRUB22E UPC: 039800101389 Keywords: led flashlight w stand nonslip handle rubber light |
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Handheld 3W LED Flashlight-Black(3*AAA) $7.1 - Bulb Type:? LED - Power: 3W- Mode: 1- Battery Require: 3 x AAA Batteries (not included)? - Material: Aluminum alloy - This LED flashlight can easily cope with the wild harsh environment - The shell is made of aluminum materials; this LED flashlight provides high-strength and it isn't afraid of pressure?? - This LED flashlight is the preferred tool for climbing, camping, hiking and other sports field. It also can be used for reading, repair and power failures? |
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Energizer Eveready 2 AAA LED Flashlight ENRUB22E $28.11 Flashlight. 11 lumens. 16 hour run time. Folding stand. Rubber grip. 1 LED. Includes two AAA alkaline batteries. Length: 4.92. Width: 1.95. Height: 9 |
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9 LED Flashlight Gold (3 x AAA) $5.33 This is 9 LED Flashlight Gold (3 x AAA). There are 9 pcs high bright LED. And the meteal shell is in gold color. It is powered by 3AAA batteries(not included). There is a carrying strap attached. The small shape promises you that it is an ideal tool for household and travel. |
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2-Mode LED Flashlight (3*AAA) $3.05 - Quality plastic shell- Plastic lens and reflector- Single mode with barrel mid click switch- 2 mode available: 1 yellow LED light up; 5 white LEDs light up- Powered by 3 x AAA batteries (not included) |
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Smith & Wesson-Flashlight, Galaxy 28 LED With Holster, 3 AAA, Black-SW2800RBW $38.5 Flashlight Galaxy 28 LED With Holster 3 AAA Black Dual switch flashlight utilizes two separate on-off buttons Choose 20 White LED plus 4 Red and 4... |
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Smith & Wesson-Flashlight, Galaxy 28 LED With Holster, 3 AAA, Black-SW2800RGW $38.5 Flashlight Galaxy 28 LED With Holster 3 AAA Black Dual switch flashlight utilizes two separate on-off buttons Choose 20 White LED plus 4 Red and 4... |
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Dorcy International 9 LED AAA Flashlight 414240 $25.7 Flashlight. Tail cap push button switch. Convenient nylon lanyard. Assorted lends colors. Weather resistant. Nine 5 MM LED bulbs. 40 hours run time. Includes 3 AAA batteries. Length: 4. Width: 4.8. Height: 5.13 |
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20-Lumen LED Flashlight (2 AAA) $5.24 Brand: Others Emitter: LED Total Emitters: 1 Powered By: AA/14500 Total Batteries: 2 Modes: Single Color: Black Material: Aluminum alloy Brightness (Lumen): 20 Dimension (CM): 17 x 3.2 x 30.0535 Weight(Kg): 0.0535 Package Contents: 1 x Flashlight Note: Batteries sold separately. |
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Mini LED Flashlight (AAA) $2.86 SpecificationsDimensions: 3.15 in x 0.57 in x 0.57 inWeight: 3.25 oz |
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8-LED Slim Flashlight (1*AAA) $10.93 8-LED Slim Flashlight (1*AAA) is a brandly new LED flashlight and can be used indoor as well as for outdoor like camping,hunting,fishing and other sports.It is low power consumption,ultra-bright,visible over a long distance,also it is waterproof,shock resistant and erode-preventable functions. |
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Dorcy International AAA LED Flashlight 414279 $36.88 Flashlight. Convenient canvas heavy duty belt holster. Interchangeable blue and red lenses. Projects beam of light up to 100 feet. Includes three AAA batteries. Anodized aluminum and rubber construction. 25 hour run time. 80 lumens. Length: 3.28. Width: 10. Height: 5 |
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Ultrafire WF-602C Cree P4-WC 60-Lumen LED Flashlight (1*AAA) $21.03 Ultrafire WF-602C Cree P4-WC 60-Lumen LED Flashlight (1*AAA) is a brandly new LED flashlight and can be used indoor as well as for outdoor like camping,hunting,fishing and other sports.It is low power consumption,ultra-bright,visible over a long distance,also it is waterproof,shock resistant and erode-preventable functions. |
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Power Light Handheld Focal Adjust 3W LED Flashlight(3*AAA) $5.26 - Bulb Type: LED - Power: 3W- Focal adjust- Mode: 1 - Battery Require: 3 x AAA Batteries (not included)? - Material: Aluminum alloy - This LED flashlight can easily cope with the wild harsh environment - The shell is made of aluminum materials; this LED flashlight provides high-strength and it isn't afraid of pressure?? - This LED flashlight is the preferred tool for climbing, camping, hiking and other sports field. It also can be used for reading, repair and power failures |
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Small Sun ZY-118A 3W LED Flashlight (3*AAA Batteries) $6.63 - Bulb Type: LED - Mode: 1 - Battery Require: 3 x AAA Batteries (not included) - Voltage: 3.6-4.5V - Material: Aluminum alloy - Size: 142 x 37mm / 5.6 x 1.5in (H x Dia.) - This LED flashlight can easily cope with the wild harsh environment - The shell is made of aluminum materials; this LED flashlight provides high-strength and it isn't afraid of pressure?? - This LED flashlight is the preferred tool for climbing, camping, hiking and other sports field. It also can be used for reading, repair and power failures |
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Super Bright 3W Handheld LED Flashlight(3*AAA) $5 - Bulb Type: LED- Power: 3W - Mode: 1 - Battery Require: 3 x AAA Batteries (not included)? - Material: Aluminum alloy - This LED flashlight can easily cope with the wild harsh environment - The shell is made of aluminum materials; this LED flashlight provides high-strength and it isn't afraid of pressure?? - This LED flashlight is the preferred tool for climbing, camping, hiking and other sports field. It also can be used for reading, repair and power failures |
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2-in-1 Cooling Fan + White Light LED Flashlight (2*AAA) $1.65 - Handy LED Flashlight + Mini Portable Cooler Fan- Carabiner clip design for easy to carry it with your bag- Powered by 2*AAA batteries (not included)SpecificationsDimensions: 5.12 in x 2.09 in x 2.01 inWeight: 1.8 oz |
How to lower voltage and amp for LED lights?
I have a flashlight with a cluster of LEDs that runs on 3 AAA batteries (4.5 volts). What resistor type do I need to use if I want to change the power source to 12 volts?
>What resistor type do I need to use
That depends on how much current the cluster uses.
I have one of those cheap little flashlights (a freebie from Harbor Freight) that has 9 little leds & 3 AAA batteries.
It takes about 180 ma using fresh batteries.
So if I wanted to use it with a 12 volt supply I would need to put about 42 ohms in series. 47 ohms is a standard value so I'd probably use that. The power dissipation would be about 1.4 watts, so I'd need at least a resistor with at least a 2 watt rating. Two 22 ohm - 1 watt (minimum) resistors in series would also work
12 volts - 4.5 volts = 7.5 volts drop needed
Since V=IR, 7.5 volts = (0.18 amps)(R)
R= 41.6 ohms
P (in watts) = VI = (7.5 volts)(0.18 amps) = 1.35 watts
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