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14" Glitter Sparkle Motion Lamp / Light ~ Lava ~ Electric ~ Red / Silver ~ A-1 |  |
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US $9.99 | 5h 53m |
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52oz Lava Brand Motion Lamp BLUE Liquid w/YELLOW Lava | |
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US $26.95 | 29d 10h 34m |
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VTG - "LAVA" MOTION LAMP - ASHFORD - BLUE W/PINK BLOBS - MIB - | |
0 Bid | US $19.99 | 1d 7h 50m |
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20oz Lava Brand Motion Lamp GREEN Liquid w/WHITE Lava | |
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US $18.95 | 28d 12h 35m |
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55" Metallic Base Motion Giant Lava Wax Volcano Lamp | |
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US $59.95 | 8d 9h 33m |
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20oz Lava Brand Motion Lamp BLUE Liquid w/PURPLE Lava | |
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US $18.95 | 14d 8h 43m |
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52oz Lava Brand Motion Lamp PURPLE Liquid w/YELLOW Lava | |
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US $26.95 | 23d 14h 10m |
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ROCKET LAVA LAMP - GREEN GLOW MOTION - HUGE 18" RETRO Kids child children | |
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US $24.99 | 3d 13h 14m |
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Vintage 1970's Red Lava Lamp Retro Motion Lamp / Old Red Lava Light | |
0 Bid | US $19.99 | 11h 43m |
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THE ORIGINAL LAVA BRAND LAVA MOTION LAMP SILVER PURPLE PINK | |
1 Bid | US $.99 | 3d 7h 9m |
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TOMATO KETCHUP NOVELTY (LAVA) MOTION LAMP | |
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US $19.99 | 3d 7h 59m |
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orange juice NOVELTY (LAVA) MOTION LAMP | |
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US $19.99 | 3d 8h |
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Original Lava Lite Purple Liquid w/Yellow Wax Motion Lamp Black Base Made in USA | |
0 Bid | US $14.99 | 3d 8h 12m |
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Vintage LAVA LAMP Red White Swirl Metal Base Lava Brand Motion Lamp 16 1/2" tall | |
3 Bids | US $15.50 | 3d 11h 9m |
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Twin Column LAVA LAMP -GREEN + GREEN GLOW MOTION DOUBLE | |
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US $31.99 | 25d 6h 16m |
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Lava Lamp Motion Lamp | |
0 Bid | US $14.99 | 3d 15h 13m |
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NFL SAN FRANCISCO 49ERS ELECTRIC LAVA MOTION LAMP NEW IN BOX | |
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US $12.00 | 4d 4h 12m |
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20oz Sponge Bob Lava Brand Motion Lamp Clear Liquid w/YELLOW Lava | |
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US $24.95 | 24d 14h 26m |
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20oz Lava Brand Motion Lamp PURPLE Liquid w/PINK Lava | |
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US $18.95 | 26d 12h 53m |
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Lava Lamp Motion Lamp Purple Orange Yellow Red 14.3" tall silver base and cap | |
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US $10.00 | 4d 7h 43m |
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10256 Creative Motion Industries Plasma Eye Accent Table Lamp red NEW eyes flash | |
0 Bid | US $25.99 | 2h 31m |
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Twin Column LAVA LAMP -GREEN + GREEN GLOW MOTION DOUBLE | |
0 Bid | US $19.99 | 3h 7m |
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Single Column LAVA LAMP - BLUE GLOW MOTION - NEW WAVE | |
0 Bid | US $9.99 | 3h 7m |
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ROCKET LAVA LAMP - GREEN GLOW MOTION - HUGE 18" RETRO | |
0 Bid | US $9.99 | 3h 13m |
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TEST TUBE LAVA LAMP - GREEN GLOW MOTION - MODERN DESIGN | |
0 Bid | US $9.99 | 11h 14m |
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PIR Infrared Auto Sensor Light Lamp Motion Detector LED For keyhole | |
0 Bid | US $5.99 | 13h 45m |
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Vintage 1960s Bradford Motion Lamp - Sphere | |
0 Bid | US $24.99 | 1d 12h 4m |
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U 2x 6 LED Light Lamp Pir Auto Sensor Motion Detector | |
0 Bid | US $.86 | 5h 43m |
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Lava Lamp,Retro, Groovy, Glitter, Motion | |
0 Bid | US $9.99 | 2d 10h 1m |
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NEW Magnetic stand LED Light Motion Activated 6-LED Illumination Lamp lighting | |
0 Bid | US $.99 | 10h 6m |
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E27 54LED PIR Occupancy Motion Sensor Light Bulb Lamp 3 | |
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US $10.48 | 3d 18h 46m |
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Hawaiian Motion Hula Lamp Dancing Girl w/ Bamboo Shade | |
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US $120.00 | 1d 10h 31m |
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Disney Princess Little Mermaid Motion Lamp | |
0 Bid | US $12.99 | 3d 4h 59m |
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New 8 LED Light Lamp PIR Auto Sensor Motion Detection Detector | |
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US $12.95 | 3d 8h 10m |
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Auto PIR Door Keyhole IR Motion Sensor Heat Temperature Detector LED Light Lamp | |
0 Bid | US $5.99 | 1d 11h 51m |
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LED NEON Light Sign Deco Equlaiser Geek Motion Lamp - iRock version | |
0 Bid | US $39.68 | 3d 16h 16m |
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LED NEON Light Sign Deco Equlaiser Geek Motion Lamp - APPLE version | |
0 Bid | US $39.68 | 3d 16h 17m |
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5-8M E27 85-260V 5W 450LM LED Infrared Motion Sensor Pure White Light Bulb Lamp | |
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US $15.26 | 8d 18h 43m |
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Motion Detector LED Light Lamp Auto Infrared PIR Sensor | |
0 Bid | US $7.69 | 2d 10h 41m |
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Hawaiian Hula Girl Motion Dancing Lamp Red Skirt | |
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US $109.99 | 3d 7h 23m |
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motion Lamp
Circular motion problem?
A bolt is threaded onto one end of a thin horizontal rod, and the rod is then rotated horizontally about its other end. An engineer monitors the motion by flashing a strobe lamp onto the rod and bolt, adjusting the strobe rate until the bolt appears to be in the same eight places during each full rotation of the rod (Fig. 6-9). The strobe rate is 2000 flashes per second; the bolt has mass 40 g and is at radius 5.0 cm. What is the magnitude of the force on the bolt from the rod?
Because the rod can be seen 8 times in one rotation, it is rotating at 2000/8 = 250 rotations/sec.
F = ma, for circular motion becomes F = mv²/r
velocity of bolt = 250 * 2πr / sec. because it goes around the circumference of a circle 250 times in a second.
Note that because you are using grams and centimeters your force will be in dynes.
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14" Glitter Sparkle Motion Lamp / Light ~ Lava ~ Electric ~ Red / Silver ~ A-1 | |
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US $9.99 | 5h 53m |
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52oz Lava Brand Motion Lamp BLUE Liquid w/YELLOW Lava | |
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US $26.95 | 29d 10h 34m |
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VTG - "LAVA" MOTION LAMP - ASHFORD - BLUE W/PINK BLOBS - MIB - | |
0 Bid | US $19.99 | 1d 7h 50m |
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20oz Lava Brand Motion Lamp GREEN Liquid w/WHITE Lava | |
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US $18.95 | 28d 12h 35m |
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55" Metallic Base Motion Giant Lava Wax Volcano Lamp | |
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US $59.95 | 8d 9h 33m |
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20oz Lava Brand Motion Lamp BLUE Liquid w/PURPLE Lava | |
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US $18.95 | 14d 8h 43m |
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52oz Lava Brand Motion Lamp PURPLE Liquid w/YELLOW Lava | |
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US $26.95 | 23d 14h 10m |
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ROCKET LAVA LAMP - GREEN GLOW MOTION - HUGE 18" RETRO Kids child children | |
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US $24.99 | 3d 13h 14m |
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Vintage 1970's Red Lava Lamp Retro Motion Lamp / Old Red Lava Light | |
0 Bid | US $19.99 | 11h 43m |
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THE ORIGINAL LAVA BRAND LAVA MOTION LAMP SILVER PURPLE PINK | |
1 Bid | US $.99 | 3d 7h 9m |
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TOMATO KETCHUP NOVELTY (LAVA) MOTION LAMP | |
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US $19.99 | 3d 7h 59m |
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orange juice NOVELTY (LAVA) MOTION LAMP | |
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US $19.99 | 3d 8h |
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Original Lava Lite Purple Liquid w/Yellow Wax Motion Lamp Black Base Made in USA | |
0 Bid | US $14.99 | 3d 8h 12m |
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Vintage LAVA LAMP Red White Swirl Metal Base Lava Brand Motion Lamp 16 1/2" tall | |
3 Bids | US $15.50 | 3d 11h 9m |
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Twin Column LAVA LAMP -GREEN + GREEN GLOW MOTION DOUBLE | |
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US $31.99 | 25d 6h 16m |
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Lava Lamp Motion Lamp | |
0 Bid | US $14.99 | 3d 15h 13m |
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NFL SAN FRANCISCO 49ERS ELECTRIC LAVA MOTION LAMP NEW IN BOX | |
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US $12.00 | 4d 4h 12m |
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20oz Sponge Bob Lava Brand Motion Lamp Clear Liquid w/YELLOW Lava | |
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US $24.95 | 24d 14h 26m |
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20oz Lava Brand Motion Lamp PURPLE Liquid w/PINK Lava | |
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US $18.95 | 26d 12h 53m |
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Lava Lamp Motion Lamp Purple Orange Yellow Red 14.3" tall silver base and cap | |
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US $10.00 | 4d 7h 43m |
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SINGLE COLUMN LAVA LAMP GREEN GLOW MOTION WAVE RETRO | |
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US $22.95 | 15d 22h 30m |
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Vintage Silver Streak Lava Lite Stardust Glitter Orang USA Motion Lamp | |
0 Bid | US $24.99 | 4d 11h 32m |
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Groovy S Shape Motion Lamp Decor, Glitter / Purple Color | |
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US $31.00 | 4d 18h 25m |
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Lava Lite Motion Light White Blue Silver Party Lamp NEW | |
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US $23.77 | 24d 3h 12m |
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52oz Designer Lava Brand Motion Lamp YELLOW Liquid w/RED Lava | |
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US $32.95 | 25d 10h 6m |
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12oz Lava Brand Motion Lamp CLEAR Liquid w/PINK Lava | |
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US $13.95 | 1d 17h 10m |
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52oz Designer Lava Brand Motion Lamp Clear Liquid w/Green Lava | |
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US $32.95 | 16d 8h 34m |
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12oz Lava Brand Motion Lamp BLUE Liquid w/WHITE Lava | |
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US $13.95 | 26d 17h 7m |
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TEST TUBE LAVA LAMP - GREEN GLOW MOTION - MODERN DESIGN | |
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US $20.99 | 18d 4h 51m |
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20oz Lava Brand Motion Lamp Clear Liquid w/BLACK Lava | |
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US $18.95 | 22d 14h 18m |
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10256 Creative Motion Industries Plasma Eye Accent Table Lamp red NEW eyes flash | |
0 Bid | US $25.99 | 2h 31m |
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Twin Column LAVA LAMP -GREEN + GREEN GLOW MOTION DOUBLE | |
0 Bid | US $19.99 | 3h 7m |
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Single Column LAVA LAMP - BLUE GLOW MOTION - NEW WAVE | |
0 Bid | US $9.99 | 3h 7m |
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ROCKET LAVA LAMP - GREEN GLOW MOTION - HUGE 18" RETRO | |
0 Bid | US $9.99 | 3h 13m |
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TEST TUBE LAVA LAMP - GREEN GLOW MOTION - MODERN DESIGN | |
0 Bid | US $9.99 | 11h 14m |
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PIR Infrared Auto Sensor Light Lamp Motion Detector LED For keyhole | |
0 Bid | US $5.99 | 13h 45m |
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Vintage 1960s Bradford Motion Lamp - Sphere | |
0 Bid | US $24.99 | 1d 12h 4m |
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U 2x 6 LED Light Lamp Pir Auto Sensor Motion Detector | |
0 Bid | US $.86 | 5h 43m |
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Lava Lamp,Retro, Groovy, Glitter, Motion | |
0 Bid | US $9.99 | 2d 10h 1m |
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NEW Magnetic stand LED Light Motion Activated 6-LED Illumination Lamp lighting | |
0 Bid | US $.99 | 10h 6m |
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E27 54LED PIR Occupancy Motion Sensor Light Bulb Lamp 3 | |
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US $10.48 | 3d 18h 46m |
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Hawaiian Motion Hula Lamp Dancing Girl w/ Bamboo Shade | |
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US $120.00 | 1d 10h 31m |
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Disney Princess Little Mermaid Motion Lamp | |
0 Bid | US $12.99 | 3d 4h 59m |
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New 8 LED Light Lamp PIR Auto Sensor Motion Detection Detector | |
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US $12.95 | 3d 8h 10m |
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Auto PIR Door Keyhole IR Motion Sensor Heat Temperature Detector LED Light Lamp | |
0 Bid | US $5.99 | 1d 11h 51m |
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LED NEON Light Sign Deco Equlaiser Geek Motion Lamp - iRock version | |
0 Bid | US $39.68 | 3d 16h 16m |
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LED NEON Light Sign Deco Equlaiser Geek Motion Lamp - APPLE version | |
0 Bid | US $39.68 | 3d 16h 17m |
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5-8M E27 85-260V 5W 450LM LED Infrared Motion Sensor Pure White Light Bulb Lamp | |
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US $15.26 | 8d 18h 43m |
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Motion Detector LED Light Lamp Auto Infrared PIR Sensor | |
0 Bid | US $7.69 | 2d 10h 41m |
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Hawaiian Hula Girl Motion Dancing Lamp Red Skirt | |
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US $109.99 | 3d 7h 23m |
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Motion sensitive light night light travel lamp | |
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US $5.99 | 5d 8h 55m |
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New 54 LED E27 Occupancy Motion Sensor Bulb Light Lamp Energy White Saving Save | |
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US $16.95 | 5d 11h |
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Batman and the joker......motion lamp | |
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US $24.99 | 5d 11h 42m |
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Infrared PIR Sensor 6-LED Light Lamp Motion Detector | |
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US $5.40 | 16d 12h 50m |
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H961 Infrared PIR Sensor 6-LED Lamp Motion Detector | |
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US $4.75 | 28d 16h 37m |
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6-LED Infrared PIR Sensor Light Lamp Motion Detector | |
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US $5.22 | 18d 10h 4m |
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E27 PIR Infrared Motion Sensor 23 LED Light Bulb Lamp | |
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US $6.49 | 29d 15h |
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E27 Infrared Motion Sensor 54 LED White Light Bulb Lamp Energy Saving | |
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US $5.79 | 22d 14h 57m |
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E27 IR Infrared Motion Sensor 23 LED Light Bulb Lamp 5m | |
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US $1.00 | 23d 17h 27m |
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Aquarium Lamp With Fish : Ocean In Motion Revolving Aquatic Scene | |
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US $17.99 | 29d 5h 46m |
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