Buy Electrical Supplies for Your Home & Projects
Found 1,159 items
- Specifications
- Brand: Power Watchdog
- Model: PWD50EPO
- product_dimensions: 5.5 x 11.5 x 3.75 inches
- item_weight: 5 pounds
- item_model_number: PWD50EPO
- date_first_available: September 25, 2013
- department: unisex-adult
- Specifications
- Brand: Philips Hue
- Model: A21
- Light Type: LED
- Wattage: 6 watts
- Bulb Shape Size: A21
- Bulb Base: E26
- Brightness: 1600 Lumen
- Color Temperature: 2.7E+3 Kelvin
- Controller Type: Amazon Alexa, Apple HomeKit, Google Assistant
- Power Source: Corded Electric
- Average Life: 2.5E+4 Hours
Smart Ceiling Fan Controllers
WINGBO SYCF6006 Works with Alexa and Google Assistant
$237.49
$279.99
- Specifications
- Brand: WINGBO
- Model: SYCF6006
- color: Nickel and Grey
- electric_fan_design: Ceiling Fan
- power_source: DC
- style: Modern
- product_dimensions: 60"D x 60"W x 31"H
- room_type: Bedroom
- special_feature: LED Light
- recommended_uses_for_product: Indoor
- wattage: 18 watts
- finish_type: Painted
- number_of_blades: 5
- air_flow_capacity: 7773 Cubic Feet Per Minute
- blade_length: 60 Inches
- voltage: 24 Volts (DC)
- included_components: Light Kit
- indoor_outdoor_usage: Indoor
- control_method: App
- blade_material: Engineered Wood
- efficiency: High
- is_cordless: No
- number_of_power_levels: 6
- size: 60"
- item_weight: 18.31 pounds
- finish: Painted
- special_features: LED Light
- batteries_included: No
- batteries_required: No
- Specifications
- Brand: WISDOM VIEW
- Model: WV-001
- indoor_outdoor_usage: Outdoor
- compatible_devices: Smartphone
- power_source: Battery Powered
- connectivity_protocol: Wi-Fi
- controller_type: Apple HomeKit
- mounting_type: Door Mount
- video_capture_resolution: 1080p
- color: black
- number_of_items: 1
- included_components: Video Doorbells
- night_vision_range: 10 Meters
- material: Acrylonitrile Butadiene Styrene (ABS)
- voltage: 5 Volts
- item_dimensions_l_x_w_x_h: 10.2 x 8.99 x 3.5 inches
- water_resistance_level: Waterproof
- batteries_required: No
- shape: Rectangular
- battery_power: 5000 Amp Hours
- low_light_technology: Night Color
- video_capture_format: MP4
- unit_count: 1.0 Count
- product_dimensions: 10.2 x 8.99 x 3.5 inches
- item_weight: 2.38 pounds
- Specifications
- Brand: WAC Lighting
- Model: Sonoma
- color: Matte White
- electric_fan_design: Ceiling Fan
- power_source: AC/DC
- style: 3000K Warm White LED
- product_dimensions: 56"D x 56"W x 9.18"H
- room_type: Kids Room, Living Room, Bedroom, Home Office, Dining Room
- noise_level: 15 dB
- wattage: 42.5 watts
- number_of_blades: 3
- air_flow_capacity: 5321 Cubic Feet Per Minute
- blade_length: 56 Inches
- voltage: 120 Volts
- light_type: LED
- blade_material: Resin Coated
- number_of_power_levels: 6
- size: 56in Blade Span
- warranty_description: 5 years LED module, lifetime on the motor, and 1 year for all other parts.
- Specifications
- Brand: Google
- Model: G28DR
- Indoor/Outdoor Usage: Outdoor, Indoor
- Compatible Devices: Smart Devices
- Power Source: Battery Powered
- Connectivity Protocol: Wi-Fi
- Controller Type: Google Assistant, Amazon Alexa, Nest
- Mounting Type: Wall Mount
- Video Capture Resolution: 720p
- Viewing Angle: 145 Degrees
- Night Vision Range: 3.05 Meters
- Frame Rate: 30 frames_per_second
- Specifications
- Brand: Govee
- Model: H605C
- Charger: EU 2-PIN PLUG
- Compatible TV Size: 75-85 inch
- LED Density: 60 LEDs/m
- Control Methods: Alexa, Google Assistant
Smart Home Hubs & Controllers
RYSE SC-0101 Simple DIY Installation in Less Than 5 Minutes
$119.99
$149.99
- Specifications
- Brand: RYSE
- Model: SC-0101
- package_dimensions: 7.6 x 6.89 x 2.8 inches
- item_weight: 1.83 pounds
- country_of_origin: China
- batteries: 2 Lithium Polymer batteries required. (included)
- batteries_required: Yes
- Specifications
- Brand: Govee
- Model: H607C
- Charger: EU 2-PIN PLUG
- Technology: RGBICWW
- Brightness: 1725lm
- Color Temperature: 2200k-6500k
- WiFi Compatibility: 2.4GHz
- Specifications
- Brand: Govee
- Model: H607C
- Charger: EU 2-PIN PLUG
- Technology: RGBICWW
- Brightness: 1725lm
- Color Temperature: 2200k-6500k
- WiFi: 2.4GHz
- Specifications
- Brand: Govee
- Model: H60A1
- Charger: EU 2-PIN PLUG
- Control: Alexa, Govee Home App
- Color Temperature Range: 2200K to 6500K
- Brightness Range: 0%-100%
- Scene Modes: 70+
- Specifications
- Brand: Philips Hue
- Model: R578138-4
- light_type: LED
- wattage: 85 watts
- bulb_shape_size: BR30
- bulb_base: E26
- light_color: White
- brightness: 1200 Lumen
- connectivity_technology: Bluetooth, Wi-Fi
- controller_type: Apple HomeKit, Google Assistant, Amazon Alexa
- power_consumption: 85 Watts
- average_life: 2.5E+4 Hours
- Specifications
- Brand: Govee
- Model: H6099
- Charger: EU 2-PIN PLUG
- Compatibility: 75-85 inch TVs
- Technology: Fish-eye Correction Camera, Govee Envisual Technology, RGBIC+W
- Control: Govee Home App, Alexa, Google Assistant
- Additional Features: Automatic Light-off, Govee DreamView Syncing
- Specifications
- Brand: Govee
- Model: H6076
- Technology: RGBICW
- Plug Type: EU 2-PIN PLUG
- Control: Voice Control, Music Sync
- Modes: DIY Mode, 58 Preset Scene Modes
- Specifications
- Brand: Govee
- Model: H619E
- Length: 2*10m Rolls
- Charger: EU 2-PIN PLUG
- Control Methods: Wi-Fi, Bluetooth, Smart App, Voice Control
- Technology: RGBIC
- Preset Modes: 64+
- Specifications
- Brand: Govee
- Model: H6099
- Charger: EU 2-PIN PLUG
- Compatibility: 55-65 inch TVs
- Technology: Fish-eye Correction Camera, Govee Envisual Technology, RGBIC+W
- Control: Govee Home App, Alexa, Google Assistant
- Additional Features: Automatic Light-off, Govee DreamView Syncing
- Specifications
- Brand: Govee
- Model: H7051
- Length: 15.3m
- Number of Lights: 24
- Charger: EU 2-PIN PLUG
- Waterproof Grade: IP67
- Specifications
- Brand: Govee
- Model: H6062
- Charger: EU 2-PIN PLUG
- Installation: Easy
- Control: Smart App, Voice Control
- Light Effects: Diffused RGBIC
- Modes: 40+ Scene Modes, Music Modes
- Specifications
- Brand: Govee
- Model: H6042
- Charger: EU 2-PIN PLUG
- Compatible TV Sizes: 55-70 inch
- Lighting Modes: 35+ scene modes
- Features: Music Sync, DreamView Light Show, RGBIC Lighting
- Specifications
- Brand: Govee
- Model: H608B / H608A / H608D
- Charger: EU 2-PIN PLUG
- Lighting Effects: RGBIC, 16 million color options, Lighting effect depth up to 100 cm
- Modes: Scene modes, Music modes, DIY
- Installation: Adaptable to most curvatures and corners, Easy and hassle-free
- Specifications
- Brand: Govee
- Model: H6099, H6097
- Charger: EU 2-PIN PLUG
- Compatibility: 40-50 inch TVs, 55-65 inch TVs, 75-85 inch TVs
- Technology: Fish-eye Correction Camera, Govee Envisual Technology, RGBIC+W
- Control: Govee Home App, Voice Commands via Alexa and Google Assistant
- Additional Features: Gravitational Hanging Design, DreamView Syncing, Auxiliary App Functions
- Specifications
- Brand: Govee
- Model: H60A1
- Charger: EU 2-PIN PLUG
- Color Temperature: 2200K to 6500K
- Brightness: 0%-100% adjustable
- Control Methods: Alexa, Govee Home App
- Scene Modes: 70+
- Specifications
- Brand: Govee
- Model: H6046
- Charger: EU 2-PIN PLUG
- Compatibility: 45-70 inch TVs
- Voice Control: Alexa, Google Assistant
- Music Modes: 8 Dynamic Modes
- Installation: Three adjustment ways
- Specifications
- Brand: Govee
- Model: H6052
- Charger: EU 2-PIN PLUG
- Lighting Effects: 37
- Colors: 16 Million
- Control: Voice, App
- Music Modes: 4
- Specifications
- Brand: Govee
- Model: H6199
- Charger: EU 2-PIN PLUG
- Compatibility: 55-65 inch TVs
- Control Methods: Alexa, Google Assistant, Govee Home App
- Special Features: Built-in mic for music sync, Real-time color matching
- Specifications
- Brand: Govee
- Model: H619C
- Length: 10m
- Charger: EU 2-PIN PLUG
- Control Methods: Wi-Fi, Bluetooth, Smart App, Voice Control
- Specifications
- Brand: ORALUCE
- Model: RL-5CCT
- color: 2700K-3000K-4000K-5000K-6000K
- material: Aluminum
- style: Classic
- light_fixture_form: Ceiling
- room_type: Bedroom, Classroom, Home Office, Study Room, Dining Room
- product_dimensions: 6.48 x 6.48 x 0.34 inches; 5.34 Pounds
- specific_uses_for_product: Shop, Garage, Yard, Home
- indoor_outdoor_usage: Outdoor, Indoor
- power_source: Corded Electric
- installation_type: Flush Mount
- special_feature: Energy Efficient, Instant On, Eye-Friendly, Long Lasting, Flicker-Free
- control_method: Touch
- light_source_type: LED
- finish_type: Polished
- shade_material: Aluminum
- number_of_light_sources: 6
- voltage: 1.2E+2 Volts (DC)
- light_color: white
- included_components: Recessed Lighting
- lighting_method: LED
- number_of_items: 1
- wattage: 12 watts
- bulb_base: GU10
- switch_type: Slide
- unit_count: 6.0 Count
- water_resistance_level: Not Water Resistant
- brightness: 1050 lumen
- efficiency: High Efficiency
- mounting_type: Ceiling Mount
- fixture_type: Non Removable
- assembly_required: Yes
- Specifications
- Brand: Emerhome
- Model: R11
- Package Dimensions: 3.54 x 3.46 x 1.85 inches
- Item Weight: 4.4 ounces
- Batteries: 1 CR5 batteries required.
- Customer Reviews: 4.5 stars (100 ratings)
- Date First Available: December 27, 2024
- Country of Origin: China
- Specifications
- Brand: Govee
- Model: H600D
- Brightness: 400LM
- Colors: 16 million
- Preset Modes: 64
- Compatibility: Alexa, Google Assistant
- Control: Govee Home App, Voice Control, Remote Control
- Special Features: Music Sync Mode, Group Control, Timing & Scheduling
- Connection: 2.4GHz Wi-Fi
- Specifications
- Brand: Sengled
- Model: B11-N13
- Light Type: LED
- Wattage: 12 Watts
- Brightness: 1500 Lumen
- Color Temperature: 2700 Kelvin
- Bulb Shape: A19
- Bulb Base: E26
- Voltage: 120 Volts
- Connectivity Technology: Bluetooth Mesh
- Average Life: 25000 Hours
Smart Home Hubs & Controllers
TP-Link P100 Voice Control with Alexa & Google Assistant
$33.99
$27.99
- Specifications
- Brand: TP-Link
- Model: P100
- Connector Type: Plug in
- Number of Poles: 2
- Plug Format: Type B
- Product Grade: New
- Specification Met: Ce, Rohs
- Amperage Capacity: 10 Amps
- Usage: indoor use only
- Warranty Description: 2-year
- Specifications
- Brand: JOOAN
- Power Source: Battery Powered
- Connectivity Protocol: Wi-Fi
- Mounting Type: Wall Mount
- Video Capture Resolution: 2K
- Color: Black
- Wireless Communication Technology: Wi-Fi
- Night Vision Range: 16 Feet
- Material: Plastic
- Voltage: 5 Volts
- Wattage: 7.5 watts
- Water Resistance Level: Water Resistant
- Alert Type: Audio and Motion
- Video Capture Format: MPEG-4
Smart Home Modules
Wifi Projector Light Starry Auto Lighting System White Tuya APP Control
$28.13
- Specifications
- Connectivity: WiFi
- Control: Tuya APP
- Lighting Effect: Starry auto lighting
- Recommended Use: Bedroom
- Color: White
- Specifications
- Brand: Govee
- Model: H619A, H619C, H619E
- Charger: EU 2-PIN PLUG
- Length: 1*5m Roll, 1*10m Roll, 2*10m Rolls
- Specifications
- Brand: MoesHouse
- Model: ZIGBEE Bluetooth Gateway
- Color: Black
- Working Temperature: -10℃ to 55℃
- Working Humidity: 10%-90%
- Power Interface: DC5v 1A (micro USB)
- Connection Method: WiFi 2.4GHz 802.11b/n/g
- Gateway Protocol: Zigbee, BLE
- IR Frequency: 38 KHz
- Control Range: 360°
- Control Distance: 10m
- Max Devices Supported: 128
Smart Home Hubs & Controllers
Govee H1162 Bluetooth Group Control for up to 7 Govee devices
$29.04
- Specifications
- Brand: Govee
- Model: H1162
- Bluetooth Group Control: Sync up to 7 Govee devices
- Music Modes: 22 modes
- Battery Life: 50+ hours on a single charge
- Compatibility: Supports all Govee Smart Lights (except H6003 & lights with only warm and cool whites)
Smart Home Hubs & Controllers
Smart Plug 4 Pack, Voice Control Outlet, Remote & Scheduled White
$24.99
$41.99
- Specifications
- Brand: VEVOR
- Measurement Precision: 0.1
- Plug Type: Type B
- Installation Type: Plug-In
- Color: White
- Mode: WiFi Socket
- Product Weight: 110 g / 0.24 lbs
- Quantity: 4
- Material: Plastic
- Product Dimensions: 3.99 x 3.81 x 6.65 cm / 1.57 x 1.5 x 2.62 inches
- Specifications
- Brand: Govee
- Model: H600D
- Brightness: 400LM
- Colors: 16 million
- Compatibility: Alexa, Google Assistant
- Control: Govee Home App, Voice control
- Connection: 2.4GHz Wi-Fi
- Specifications
- Brand: MakerFocus
- Model: OMENT
- Package Dimensions: 4.13 x 2.64 x 0.59 inches
- Item Weight: 0.176 ounces
- Manufacturer: MakerFocus
- Country of Origin: China
- Operating Range: 0.2m~8m
- Accuracy: ±6cm@ (0.2-3m), ±2%@ (3m-8m)
- Power Consumption: ≤0.35W
- Communication Interface: UART, I2C
- Specifications
- Brand: Sonoff
- Model: ZB Bridge-P
- Wireless Connectivity: Wi-Fi IEEE 802.11 b/g/n 2.4GHz, Zigbee 3.0
- Operating Temperature: -10°C to 40°C
- Material: PC V0
- Weight: 35g
- Dimensions: 62x62x20mm
- Specifications
- Brand: Ulooka
- Model: M17
- Indoor/Outdoor Usage: Outdoor
- Compatible Devices: Tablet, Smartphone
- Power Source: Hardwired
- Connectivity Protocol: Bluetooth, Wi-Fi
- Controller Type: Smartphone App
- Mounting Type: Wall Mount
- Video Capture Resolution: 1080p
- Color: Black
- Number of Items: 2
- Included Components: Indoor Chime, Video Doorbell Camera, Mounting Hardware
- Wireless Communication Technology: Bluetooth, Wi-Fi
- Form Factor: Doorbell Camera
- Viewing Angle: 110 Degrees
- Night Vision Range: 32 Feet
- Frame Rate: 30fps
- Material: Plastic, Metal
- Voltage: 12 Volts
- Wattage: 5 watts
- Item Dimensions: 4 x 1.4 x 0.8 inches
- Batteries Required: Yes
- Item Weight: 2.4 ounces
- Alert Type: Mobile Push Notification
- Specific Uses For Product: Door Monitoring, Security
- Unit Count: 1.0 Count
- Maximum Webcam Image Resolution: 2 MP
- Number of IR LEDs: 6
- Product Grade: Consumer
- Batteries: 1 9V batteries required. (included)
- Country of Origin: China
- Specifications
- Brand: MoesHouse
- Model: ZB-HUB Gateway
- Compatibility: ZigBee3.0 devices, WiFi-connected devices, Alexa, Google Home
- Features: Voice control, Scene automation, Tuya Smart app integration
- Package Includes: 1 x Wired MoesHouse HUB
Smart Home Hubs & Controllers
Multimode Smart Gateway ZigBee3.0 WiFi Bluetooth Mesh Hub
$20.99
$39.99
- Specifications
- Brand: MoesHouse
- Electrical Parameters: 5V 1A
- Operating Temperature: -10°C to 45°C
- Operating Humidity: 5% to 90% RH, non-condensing
- Wireless Protocol: 2.4G WiFi, ZigBee, Bluetooth Mesh
- Product Size: 92 * 92 * 40 mm
- Product Weight: 119g
Push Buttons
Transparent Solar Powered Doorbell Rain Cover Solar powered for automatic charging
$20.59
- Specifications
- Material: ABS
- Compatibility: Doorbell width within 3.15 inches, Doorbell thickness within 1.4 inches
- Installation: Drill holes for rubber plugs, Secure with long screws
- Specifications
- Brand: Govee
- Model: H6061
- Charger: EU 2-PIN PLUG
- Control Method: Govee Home App, Alexa, Google Assistant
- Technology: RGBIC
- Panel Count: 10
- Specifications
- Brand: MoesHouse
- Model: ZB-HUB
- Wireless Connection: ZigBee3.0
- Power Input: 220V 50Hz 0.25A
- Working Temperature: -10 to +50℃
- Working Humidity: 10%-90%RH (no condensation)
- Compatibility: Alexa, Google Home, Tmall Genie
- Specifications
- Brand: Sengled
- Model: B11-N11W_6P
- light_type: LED
- wattage: 60 watts
- bulb_shape_size: A19
- bulb_base: E26
- light_color: Soft White
- color_temperature: 2700 Kelvin
- brightness: 800 Lumen
- connectivity_protocol: Bluetooth Mesh
- average_life: 25000 Hours
- Specifications
- Brand: ZZJ
- Model: ZJ069-5FT-001
- product_dimensions: 5.9 x 2 x 0.1 inches
- item_weight: 12.8 ounces
- country_of_origin: China
- Specifications
- Brand: ALPHAPEACH
- Model: M50
- Indoor/Outdoor Usage: Outdoor, Indoor
- Compatible Devices: Smartphone
- Power Source: Battery Powered
- Connectivity Protocol: Wi-Fi
- Controller Type: Aiwit app
- Mounting Type: Wall Mount
- Video Capture Resolution: 1080p
- Number of Items: 1
- Included Components: Video Doorbell, Chime
- Wireless Communication Technology: Wi-Fi
- Batteries Required: Yes
- Low Light Technology: Night Color
- Alert Type: Motion Only
- Video Capture Format: H.264
- International Protection Rating: Weather Resistance
- Item Weight: 8.4 ounces
- Batteries: 2 Lithium Ion batteries required. (included)
- Specifications
- Brand: Sengled
- Model: E21-N13A
- light_type: LED
- wattage: 9 watts
- bulb_shape_size: A19
- bulb_base: E26
- incandescent_equivalent_wattage: 60 Watts
- light_color: Warm White
- voltage: 120 Volts
- color_temperature: 2700 Kelvin
- brightness: 800 Lumen
- connectivity_technology: USB
- controller_type: IFTTT, Google Assistant, Amazon Alexa, iOS, Android
- power_source: AC
- connectivity_protocol: Wi-Fi, Zigbee
- average_life: 2.5E+4 Hours
- warranty_description: 3 years.
- Specifications
- Brand: Sengled
- Model: B11-N12
- Light Type: LED
- Wattage: 60 watts
- Bulb Shape Size: A19
- Bulb Base: E26
- Light Color: Daylight White
- Voltage: 120 Volts
- Color Temperature: 5000 Kelvin
- Brightness: 800 Lumen
- Connectivity Technology: Sengled Auto Pairing Kit
- Controller Type: Vera, Amazon Alexa
- Power Source: AC
- Connectivity Protocol: Bluetooth Mesh
- Power Consumption: 8.7 Watts
- Average Life: 36 Months
- Specifications
- Brand: MOES
- Model: Bluetooth MESH Gateway
- Technology: Bluetooth Mesh, WiFi 802.11 b/g/n
- Power: Micro USB DC5V
- Dimensions: 65*65*14.5 mm
- Weight: 29g
- Operating Temperature: -10-55℃
- Specifications
- Brand: Tuya
- Model: TYZG1
- Communication Method: ZigBee 3.0
- Connected Sub-devices: Up to 128 devices
- Product Size: 64mm*64mm*15mm
- Product Weight: 60g
- Working Parameters: 5V/1A (Type-C)
- Operating Temperature: -10℃ to 55℃
- Product Certification: CE, FCC ID, ROHS
- Specifications
- Brand: TP-Link
- Model: HS220
- product_dimensions: 1.77 x 3.35 x 5.04 inches; 3.84 ounces
- item_model_number: HS220
- date_first_available: March 10, 2018
- country_of_origin: Vietnam
- customer_reviews: ratings_count: 34121, stars: 4.5
Smart Home Modules
WiFi Smart Temperature Switch with Real-Time Energy Monitoring
$13.99
$20.99
- Specifications
- Brand: Tuya
- Input Voltage: AC 85-250V
- Max Power: 3000W
- Wireless Standard: 2.4 GHz, 802.11 b/g/n
- Security: WPA-PSK / WPA2-PSK
- Operating Temperature: -20ºC to 80ºC
- Material: Flame retardant ABS V0
- Specifications
- Brand: Govee
- Model: H600D
- Brightness: 400LM
- Colors: 16 Million
- Preset Modes: 64
- Compatibility: Alexa, Google Assistant
- Control: Govee Home App, Voice Control
- Connection: 2.4GHz Wi-Fi
- Specifications
- Brand: MoesHouse
- Model: Smart WiFi Light Switch
- Voltage: 100-240V AC, 50/60Hz
- Load Capacity: 10-400W/Grupo INC, 10-200W/Gang LED
- Wireless Protocol: Wi-Fi 2.4 GHz
- Material: PC+ABS+glass, UL 94 V-0 rated
- Specifications
- Brand: Tuya
- Model: Zigbee Signal Repeater
- Communication Protocol: 2.4GHz 802.11b/g/n, Zigbee 3.0
- Input Type: Type-C CC 5V, 1A
- Output Power: 20dB
- Indoor Signal Range: 20-50 m
- Outdoor Signal Range: >300m (open area)
- Operating Temperature: -10℃ to 55℃
- Operating Humidity: 10% to 90% RH
- Size: 5.9 x 3.5 x 1.2 cm
- Voice Control Compatibility: Amazon Alexa, Google Home
- Specifications
- Brand: Wyze
- Model: WVDWDV2WK-SZ
- indoor_outdoor_usage: Outdoor
- color: Black
- number_of_items: 1
- included_components: Wedge Kit x1
- item_dimensions_l_x_w_x_h: 1.85 x 1.77 x 4.5 inches
- batteries_required: No
- manufacturer: Shenzhen WYZE Technology Co., Ltd.
- item_weight: 3.2 ounces
- product_dimensions: 1.85 x 1.77 x 4.5 inches
- country_of_origin: China
- special_features: 防水防风
- batteries_included: No
- date_first_available: March 20, 2025
Smart Home Hubs & Controllers
Tuya Cubetouch Bot Remote control via Tuya Bluetooth gateway
$7.31
$20.89
- Specifications
- Brand: Tuya
- Model: Cubetouch Bot
- Dimensions: 48 x (other dimensions not specified)
- Control Methods: Mobile phone Bluetooth, Voice control via Alexa/Google Home, Remote control via Bluetooth gateway
- Compatibility: Amazon Alexa, Google Assistant, Tuya Smart Life App
- Included Accessories: Mechanical arms of different lengths and shapes