Growatt WIT 4K-HU vs Growatt SPM 4000TL-HU
VS
The verdict
SPM 4000TL-HU leads on the differences that matter
The largest is european efficiency: 0.6 pp more efficient. 4 of 22 comparable parameters are identical, with 10 more left out because at least one datasheet does not publish them.
See all 18 differencesHow alike are they
4
of 22 comparable
parameters are identical
parameters are identical
identical
differs
not published
01
18 of 22 parameters
What actually differs
Parameter
WIT 4K-HU
SPM 4000TL-HU
Difference
European efficiency
97.0 %
97.6 %
0.6 pp more efficient
Max DC voltage
1000 V
600 V
400 V apart
Max AC power
4.40 kW
4.00 kW
0.40 kW apart
Max PV power
6.40 kW
6.00 kW
0.40 kW apart
Max charge current
290 A
140 A
150 A faster charging
Weight
38.0 kg
26.0 kg
12.0 kg lighter
Weight per kW
9.5 kg/kW
6.5 kg/kW
3.0 kg/kW lighter
Noise
50 dB
30 dB
20 dB quieter
Max efficiency
97.6 %
98.1 %
0.5 pp more efficient
DC/AC ratio
1.60
1.50
0.10 more oversizing headroom
Grid connection
3-phase
Single-phase
3-phase vs Single-phase
Nominal AC voltage
400 V
230 V
170 V apart
Start voltage
180 V
130 V
50 V earlier start
Ingress protection
IP66
IP65
IP66 vs IP65
MPPT voltage range
150-850 V
150-550 V
150-850 V vs 150-550 V
Battery voltage
40-60V (rated 51.2V)
40-60V
40-60V (rated 51.2V) vs 40-60V
Dimensions
698x475x240 mm
330x580x230 mm
698x475x240 mm vs 330x580x230 mm
Cooling
forced-air
natural
forced-air vs natural
02
Full specification
Parameter
WIT 4K-HU
SPM 4000TL-HU
Difference
AC output
Rated AC power
4.00 kW
4.00 kW
Same
Max AC power
4.40 kW
4.00 kW
0.40 kW apart
Grid connection
3-phase
Single-phase
3-phase vs Single-phase
Nominal AC voltage
400 V
230 V
170 V apart
Max AC current
-
17.4 A
Not published by Growatt
PV input
Max PV power
6.40 kW
6.00 kW
0.40 kW apart
DC/AC ratio
1.60
1.50
+0.10 for WIT 4K-HU
Max DC voltage
1000 V
600 V
400 V apart
MPPT voltage range
150-850 V
150-550 V
150-850 V vs 150-550 V
Start voltage
180 V
130 V
-50 V for SPM 4000TL-HU
MPP trackers
-
2
Not published by Growatt
Strings per tracker
-
1
Not published by Growatt
Max input current per tracker
-
22.0 A
Not published by Growatt
Efficiency
European efficiency
97.0 %
97.6 %
+0.6 pp for SPM 4000TL-HU
Max efficiency
97.6 %
98.1 %
+0.5 pp for SPM 4000TL-HU
CEC efficiency
-
-
Neither datasheet publishes this
Battery
Battery input
Yes
Yes
Same
Battery voltage
40-60V (rated 51.2V)
40-60V
40-60V (rated 51.2V) vs 40-60V
Max charge current
290 A
140 A
+150 A for WIT 4K-HU
Backup power
-
-
Neither datasheet publishes this
Physical
Weight
38.0 kg
26.0 kg
-12.0 kg for SPM 4000TL-HU
Weight per kW
9.5 kg/kW
6.5 kg/kW
-3.0 kg/kW for SPM 4000TL-HU
Dimensions
698x475x240 mm
330x580x230 mm
698x475x240 mm vs 330x580x230 mm
Ingress protection
IP66
IP65
IP66 vs IP65
Cooling
forced-air
natural
forced-air vs natural
Noise
50 dB
30 dB
-20 dB for SPM 4000TL-HU
Max operating temperature
60 °C
60 °C
Same
Connectivity and safety
Wi-Fi
-
Yes
Not published by Growatt
Ethernet
-
Yes
Not published by Growatt
Arc fault protection
-
-
Neither datasheet publishes this
Integrated DC switch
Yes
-
Not published by Growatt
Warranty
Warranty
5 yrs
5 yrs
Same
03
Open all inverters
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04
Written summary
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Every figure here is from the manufacturers' own datasheets - a dash means the value is not published, never an estimate.