GE Cync A21 full color (CLEDA2116CD)No flickerDiscontinued
Full colorA21E261950K to 7800K

GE Cync CLEDA2116CD A21 full color smart bulb

Amazon

The verdict

A full color A21 bulb, now discontinued. Its white light is excellent (CRI 93, Rf 91), it dims down to 4.5 lm, its warmest white is 1930K, and I measured no flicker risk.

A solid all-round bulb with no major weakness in my tests.

Tested Jul 9, 2024 · firmware 1.3.131 · how I test

How true is the white light?Excellent

CRI 93 · Rf 91

Averaged over its warm, neutral and cool settings. #5 of 119 bulbs.

608090100
How low does it dim?Dims low

Down to 4.5 lm

Brightest white 1,748 lm. #41 of 119 bulbs.

0.1 lm1 lm night light10100300
Is it good for evenings?Very warm

Warmest white 1930K

mel-DER 0.42 at that setting. Daylight is 1.0. #22 of 119 bulbs.

1500K candle9000K blue sky
Does it flicker?No risk

No risk at full, no risk at half

Graded against IEEE 1789.

Percent flicker
0% · 0%
SVM
0.00 · 0.00

Full brightnessHalf

How rich are its colors?Fair

69% of Rec. 2020

RGB brightness 2.2 to 210 lm. #48 of 65 color bulbs.

50%75%95%

The white settings

Pick a setting. Everything below follows it.

1500KCandleNeutralDaylight9000K
Spectrum
Melanopic DER0.42Body-clock stimulus per lumen. Daylight is 1.0, a candle about 0.2.
Brightness1.7 to 615 lm
Tint-0.0036
RosyNeutralGreen

How colors look

At the selected setting. The red line pulls out where colors get more vivid and pinches in where they dull.

Color Shift Map
TM-30 Rf82
TM-30 Rg111Slightly boosts saturation (100 is neutral)
CRI Re67
CRI Ra73
Not measured

Full color

The triangle is every color the diodes can mix. Hover a corner for that diode.

69%of Rec. 2020
0%75%90%100%
Color brightness2.2 to 210 lm
Diode spectra

Flicker

Measured with a flicker meter at full and half brightness.

0%percent flicker at full brightness
No flicker
Not measured

FullHalf

Percent flicker
0% · 0%
Flicker index
0.000 · 0.000
SVM
0.003 · 0.003
PstLM
0.051 · 0.071
Assist Mp
0.020 · 0.008

Where it ranks

All 120 bulbs. Left dims lower, up renders color more truly. Tap a dot to open that bulb.

Night-light low and true color0.111010030060708090100Dimmest white (lm, log scale). Left dims lower.CRI, averagedPhilips Hue LTD017: 1.2 lm, CRI 89Philips Hue LTD016: 1.0 lm, CRI 89Philips Hue LCZ002: 0.8 lm, CRI 91Philips Hue LCY002: 0.8 lm, CRI 91Philips Hue LCO006: 0.8 lm, CRI 91Philips Hue LCO003: 1.6 lm, CRI 85Philips Hue LCG005: 0.7 lm, CRI 83Philips Hue LCG007: 0.8 lm, CRI 84Amazon Basics BRC0652CD: 58 lm, CRI 93Amazon Basics BRS0652CD: 72 lm, CRI 91Amazon Basics 11aSB-A800ST-Q1-WGN: 29 lm, CRI 86Amazon Basics 11aSB-A800ST-Q1-WZN: 15 lm, CRI 92TP-Link Tapo L510E: 18 lm, CRI 89Amazon Basics 11aSB-A800ST-Q1-WDN: 32 lm, CRI 91Philips Hue LTV005: 11 lm, CRI 89Philips Hue LTO005: 11 lm, CRI 89Philips Hue LTO004: 11 lm, CRI 89Philips Hue LTG006: 0.7 lm, CRI 79Philips Hue LWO006: 8.6 lm, CRI 81Philips Hue LTA008: 1.1 lm, CRI 80Philips Hue LWE005: 5.7 lm, CRI 78Philips Hue LWE006: 8.8 lm, CRI 90Philips Hue LWA025?: 42 lm, CRI 91Philips Hue LWG006: 9.0 lm, CRI 80Philips Hue LWA023: 11 lm, CRI 79Philips Hue LCD007: 0.9 lm, CRI 89Philips Hue LCD005: 0.9 lm, CRI 91Philips Hue LTA025: 1.6 lm, CRI 81Philips Hue LWA008: 95 lm, CRI 92IKEA Tradfri 204.391.94: 10 lm, CRI 84IKEA Tradfri 604.391.68: 8.5 lm, CRI 84IKEA Tradfri 205.182.47: 9.8 lm, CRI 94IKEA Tradfri 205.187.37: 26 lm, CRI 88IKEA Tradfri 105.455.00: 10.0 lm, CRI 87IKEA Tradfri 905.474.30: 6.9 lm, CRI 94IKEA Tradfri 205.187.42: 14 lm, CRI 87IKEA Tradfri 404.619.14: 9.0 lm, CRI 90IKEA Tradfri 604.413.45: 8.4 lm, CRI 90IKEA Tradfri 704.413.78: 8.0 lm, CRI 79IKEA Tradfri 905.412.73: 4.7 lm, CRI 89IKEA Tradfri 605.391.96: 5.8 lm, CRI 86IKEA Tradfri 705.415.18: 12 lm, CRI 94IKEA Tradfri 104.392.55: 8.2 lm, CRI 79TP-Link Tapo L535E: 13 lm, CRI 86TP-Link Tapo L530E: 16 lm, CRI 84EcoSmart 11PR38120RGBWH1: 57 lm, CRI 76EcoSmart 12BR4090WRGBWH1: 71 lm, CRI 92Philips Hue LCE001: 0.7 lm, CRI 90EcoSmart 11BR3065WRGBWH1: 37 lm, CRI 86Philips Hue LCS002: 49 lm, CRI 88Philips Hue LTE001: 0.7 lm, CRI 83Philips Hue LWS003: 59 lm, CRI 89Philips Hue LWV006: 12 lm, CRI 79TP-Link Kasa KL130: 21 lm, CRI 86TP-Link Kasa KL135: 21 lm, CRI 88TP-Link Kasa KL125: 36 lm, CRI 85TP-Link Kasa KL110: 11 lm, CRI 87innr AE 280 C: 44 lm, CRI 90innr AE 270 T: 29 lm, CRI 92innr BE 220: 17 lm, CRI 90innr AE 262: 4.5 lm, CRI 89innr AE 264: 5.8 lm, CRI 87Philips Hue LCD006: 1.0 lm, CRI 90Philips Hue LCA007: 1.5 lm, CRI 87Philips Hue LCA009: 2.7 lm, CRI 85GE Cync CLEDR309SD1: 49 lm, CRI 94Philips Hue LCB002: 1.6 lm, CRI 85Philips Hue LTB003: 1.7 lm, CRI 88Philips Hue LWA019: 52 lm, CRI 92Philips Hue LTV004: 12 lm, CRI 89Philips Hue LTA007: 11 lm, CRI 89GE Cync CLEDA199CD1M: 1.5 lm, CRI 91GE Cync CLEDA199SD1: 1.5 lm, CRI 92GE Cync CLEDR309CD1: 1.2 lm, CRI 91GE Cync CFIXCNLR6CRVD: 1.9 lm, CRI 93GE Cync CFIXCNLR4CRVD: 1.5 lm, CRI 93GE Cync CLEDG256CDGS: 2.1 lm, CRI 86GE Cync CLEDST196LDGF: 30 lm, CRI 90GE Cync CLEDG256LDGF: 31 lm, CRI 91GE Cync CLEDA199LD1: 41 lm, CRI 90GE Cync CLEDA199CD1: 1.4 lm, CRI 92GE Cync CLEDA199CDEN: 1.1 lm, CRI 93GE Cync CLEDP3815CD1: 47 lm, CRI 83GE Cync CFIXRSCR6CRVD: 1.5 lm, CRI 93GE Cync CLEDR309CDRV: 1.3 lm, CRI 93GE Cync CLEDA199LDRV: 46 lm, CRI 90GE Cync CLEDST196CDGS: 1.6 lm, CRI 87GE Cync CLEDBM6LDGF: 30 lm, CRI 90GE Cync CLEDBC6LDGF: 29 lm, CRI 90GE Cync CLEDR309CDEN: 0.7 lm, CRI 93Govee H601C: 47 lm, CRI 78Govee H601D: 37 lm, CRI 78Govee H601A: 44 lm, CRI 92Govee H601B: 186 lm, CRI 92Govee H600A: 186 lm, CRI 93Govee H6006: 129 lm, CRI 93Govee H6001: 7.3 lm, CRI 76Govee H6008: 102 lm, CRI 85Govee H6010: 133 lm, CRI 87Nanoleaf NL65N100: 1.1 lm, CRI 93Nanoleaf NL53E100: 1.3 lm, CRI 91Nanoleaf NL54U000: 0.6 lm, CRI 80Nanoleaf NL67E100: 2.0 lm, CRI 93Wyze WLPBR30C: 18 lm, CRI 89Wyze WLPA19V2: 58 lm, CRI 93LIFX LXDL6CUS: 4.3 lm, CRI 79LIFX LCCE12US: 0.6 lm, CRI 74LIFX LCDDE12US: 3.1 lm, CRI 92LIFX LHBR30E26IRUS: 8.1 lm, CRI 77LIFX LHBR30E26US: 8.5 lm, CRI 78LIFX LFXPAR381600RGBW: 6.6 lm, CRI 66LIFX LFXA211600RGBW: 6.6 lm, CRI 73LIFX LHLA19E26US: 8.1 lm, CRI 75LIFX LHLA19E26UVUS: 8.4 lm, CRI 71Philips Hue LCA005: 1.1 lm, CRI 87LIFX L3A19LW06E26US: 5.7 lm, CRI 93LIFX L3A19LC08E26US: 6.0 lm, CRI 77Wyze WLPA19CV2: 18 lm, CRI 86This bulb

This bulbOther bulbsHigh flicker riskDiscontinued

Beat it on both

No bulb I have tested dims lower and renders color more truly. This one is on the frontier.

Similar bulbs

Still sold, same E26 base.

No flickerDims lowerGE Cync CLEDR309CDENCRI 93 · dims to 0.7 lm · $25No flickerCheaperAmazon Basics BRC0652CDCRI 93 · dims to 58 lm · $10

Setup and specs

Connects byWi-FiBluetoothZigbeeThread
Works withApple HomeAmazon AlexaGoogle HomeSmartThingsMatter
Color mode
Full color
White range
1950K to 7800K
Shape
A21
Base
E26
Dimming curve
Logarithmic
Max power
14.9 W
Weight
140 g
Firmware tested
1.3.131
Tested
Jul 9, 2024