Tune the same COB light from 2500K (warm yellow, similar to halogen) to 6500K (cool white, similar to daylight). Pick any temperature in between for neutral working light at 4000K, soft evening light at 3000K, or any custom value. Set it manually in the app, or schedule it to shift automatically through the day — warm in the morning, neutral midday, warm again at night.

Dim from 0% to 100% using PWM (Pulse Width Modulation) at high frequency — flicker-free across the full range. Most cheap drivers flicker noticeably below 30%. This driver maintains flicker-free output even at 5% brightness, which matters for late-night use, photography, and anyone sensitive to flicker.

Accepts input voltage from 90V to 300V AC at 50Hz or 60Hz. Indian grid voltage in apartments routinely fluctuates between 180V and 260V; spikes during transformer switching can hit 280V+. This driver runs stably across that range. No external stabiliser needed for the driver itself.

Built-in surge protection rated up to 4.5kV protects the driver and the connected COB light from voltage spikes caused by lightning strikes, grid switching, and power restoration after outages. Critical in Indian apartment buildings where power infrastructure transients are common. [NEEDS VERIFICATION: confirm against test report]

Short circuit protection: if the COB output is short-circuited (e.g. damaged wire), the driver shuts down immediately and recovers automatically when power is reset. Over-voltage protection: same auto-recovery behaviour if input voltage exceeds the safe range. No fuses to replace, no manual reset.

Uses an isolated flyback power supply design. Input (mains) and output (LED) circuits are electrically separated by a transformer. Practical benefit: reduced electrical noise, better LED performance, and improved safety if any output wire is accidentally touched. Not all sub-₹500 drivers offer isolation — many use cheaper non-isolated topologies.

Total Harmonic Distortion stays at or below 10% at full load on 230VAC. Lower THD means less interference fed back into your home wiring and cleaner light output. Flicker-free across the full dimming range — important for living rooms, study areas, and anywhere people spend extended time under the light.

Typical efficiency of 90% at 230VAC input. For a 30W COB load, that means roughly 33W input from the mains — only 3W lost as heat in the driver. Higher efficiency means less heat inside the false ceiling and longer driver life. [NEEDS VERIFICATION: confirm against test report]

Rated for –10°C to +65°C ambient operation, with 20–95% RH humidity tolerance. Designed to handle the heat trapped in Indian false ceilings during summer (typically 45–55°C in unventilated cavities) and the humidity of monsoon and coastal cities like Mumbai, Chennai, and Vizag.

Works with Apple Siri (and Siri Shortcuts, Apple Watch, CarPlay, Focus Modes), Google Assistant, and Amazon Alexa. Say “Hey Siri, dim kitchen light to 30%,” “Alexa, set bedroom light to warm white,” or “Hey Google, set workspace to 5000K.” Voice commands work in standard English.

COB lights shift from 6500K cool morning → 4000K neutral midday → 2700K warm evening, on schedule

One tap → dining COBs at 2700K, 40% brightness; kitchen COBs at 3500K, 60%

Study/office COBs at 5500K, 100% — neutral-cool light proven to support focus

Bedroom COBs warm to 2500K and dim to 10% at scheduled bedtime; full off at sleep