What modem do you use and specs?
Wireless and Portable WiFi Connections
5G-H153 Modem

Dimensions:
Width (W): 90 mm
Depth (D): 90 mm
Height (H): 183 mm
Ports:
2 x ethernet ports for wired connections.
Our 5G modem uses 12 Watts when busy and 8.4 Watts when idle (Essentially the same as an LED lightbulb)
[Discontinued] TP-Link Deco x58-4G

Dimensions:
Width (W): 105 mm
Depth (D): 105 mm
Height (H): 167 mm
Ports:
2 x ethernet ports for wired connections.
Our 4G modem only uses 0.2 Amps x 13.4 Volts = 2.7 Watts of power. Essentially it's the same as an LED lightbulb.
NZMCA Fibre Connections
Grandstream GWN7062E

Dimensions
Unit Dimension without antennas: 205mm (L) x 130mm (W) x 35.5mm (H)
Unit Dimension with antennas at 90°: 235.5mm (L) x 145mm (W) x 192mm (H)
Weight
375g
Ports
1x Gigabit Ethernet WAN port and 4x Gigabit Ethernet LAN ports
Power
Input: 100–240VAC, 50–60Hz
Output: 12VDC, 1A (12W)
Family Fibre Connections
Plume SuperPod

Dimensions:
Width (W): 95.5 mm
Depth (D): 86.7 mm
Height (H): 39 mm
Weight:
217g
Ports:
2 x ethernet ports for wired connections.
Power consumption:
4.5W standby, 10W average, 15W maximum