What is Gu
In the lighting industry, the term “Gu” refers to a specific type of bulb base used for various lighting fixtures. The “G” in Gu stands for “multiple pins as a connector,” indicating that the bulb has more than one pin for connecting to the socket. This design allows for a secure and stable connection between the bulb and the socket. The “U” in Gu stands for “universal,” suggesting that the bulb is designed to fit in a variety of socket types. This versatility makes Gu bulbs widely used and compatible with different lighting fixtures.
Maybe You Are Interested In
- Ceiling-mounted RZ037 PIR occupancy sensor dimmer for 220V power
- 3A maximum working current with 660W rated load
- LUX button controls light-sensor ON/OFF and user-set dimming brightness
- Ceiling-mounted RZ037 PIR occupancy sensor dimmer for 110V power
- 3A maximum working current with 330W rated load
- LUX button controls light-sensor ON/OFF and user-set dimming brightness
- Ceiling-mounted PIR occupancy sensor with dry-contact relay output
- 12/24VDC or 12/24VAC low-voltage supply
- COM, NO, and NC isolated relay contacts for EMS, HVAC, and building control inputs
- Low-voltage DC recessed ceiling-mounted microwave motion sensor switch
- 12 VDC / 24 VDC input with 10-30 VDC range
- 10A max work current with adjustable time delay, Lux threshold, and sensitivity
- Higher-load recessed ceiling-mounted microwave motion sensor switch
- 100-265 VAC line-voltage input, 10A model
- 5.8 GHz microwave sensing with adjustable time delay, Lux threshold, and sensitivity
- Recessed ceiling-mounted microwave motion sensor switch
- 100-265 VAC line-voltage input, 5A model
- 5.8 GHz microwave sensing with adjustable time delay, Lux threshold, and sensitivity
- Low-voltage DC ceiling-mounted microwave motion sensor switch
- 12 VDC / 24 VDC input with 10-30 VDC range
- 10A max work current with adjustable time delay, Lux threshold, and sensitivity
- Higher-load ceiling-mounted microwave motion sensor switch
- 100-265 VAC line-voltage input, 10A model
- 5.8 GHz microwave sensing with adjustable time delay, Lux threshold, and sensitivity
- Ceiling-mounted microwave motion sensor switch
- 100-265 VAC line-voltage input, 5A model
- 5.8 GHz microwave sensing with adjustable time delay, Lux threshold, and sensitivity
- Wireless switch and receiver kit for indoor ON/OFF lighting control
- 100-230VAC, 50/60Hz receiver with 5A rated current
- CR2032-powered wireless switch with 2.4GHz communication
- Occupancy (Auto-ON/Auto-OFF)
- 12–24V DC (10–30VDC), up to 10A
- 360° coverage, 8–12 m diameter
- Time delay 15 s–30 min
- Light sensor Off/15/25/35 Lux
- High/Low sensitivity
- Auto-ON/Auto-OFF occupancy mode
- 100–265V AC, 10A (neutral required)
- 360° coverage; 8–12 m detection diameter
- Time delay 15 s–30 min; Lux OFF/15/25/35; Sensitivity High/Low
- Auto-ON/Auto-OFF occupancy mode
- 100–265V AC, 5A (neutral required)
- 360° coverage; 8–12 m detection diameter
- Time delay 15 s–30 min; Lux OFF/15/25/35; Sensitivity High/Low
- 100V-230VAC
- Transmission Distance: up to 20m
- Wireless motion sensor
- Hardwired control
- Voltage: 2x AAA Batteries / 5V DC (Micro USB)
- Day/Night Mode
- Time delay: 15min, 30min, 1h(default), 2h
- EU plug power adapter
- UK plug power adapter
- US plug power adapter
- 5V DC
- Transmission Distance: up to 30m
- Day/Night mode
- 5V DC
- Transmission Distance: up to 30m
- Day/Night mode
There are other variations of G-type bulbs, such as GX bulbs, which have a special pin type, such as square pins. However, a Gu bulb can fit in a GX fitting because it is designed to be universal, whereas a GX bulb may not fit in a Gu fitting. This makes Gu bulbs a popular choice for various lighting applications.
Two popular examples of Gu bulbs used in spotlights are the GU5.3 and GU10. While they have a similar shape for the main bulb, the pin design differs between the two types. The GU5.3 has a bi-pin base with pins spaced 5.3mm apart, while the GU10 has a bi-pin base with pins spaced 10mm apart. These slight variations in pin design allow for compatibility with different spotlight fixtures.
Looking For Motion-Activated Energy-Saving Solutions?
Contact us for complete PIR motion sensors, motion-activated energy-saving products, motion sensor switches, and Occupancy/Vacancy commercial solutions.
Frequently Asked Questions
What Does Gu 5.3 Mean
It measures 50mm across the face of the light bulb. The GU5.3 designation indicates that there is a 5.3mm distance between the two pins.
What Does Gu in GU10 Mean
GU10 is a designation that is commonly used in various contexts. In the case of the Global Underground (GU) series, GU10 refers to the album titled “Global Underground 010: Athens” by Danny Tenaglia. Additionally, GU10 is also associated with the GU postcode area located within Surrey, England.
What Is Gu 5.3 Bulb
The GU5.3 bulb is a type of MR16 push and fit lamp that features two pins spaced 5.3mm apart. This bulb base, also known as GX5.3, is commonly used in spotlights, track lighting, recessed ceiling lights, and pendant lighting.
Is Gu 5.3 the Same as GU10
GU10 lamps are specifically designed to operate on mains voltage of 230V, while GU5.3 lamps are low voltage lamps that require a 12V transformer to function properly.
