ENER-J 20W AI Inverter Bulb with Removable & Replaceable 2400mAh Battery — 2000 Lumens, 10Hr Backup, B22

Here’s the problem with most inverter bulbs: after a year or two, the internal battery starts losing capacity, the backup time drops, and eventually you throw the whole thing away and buy another one. The ENER-J F922 is built to break that cycle. Its removable and replaceable battery means when the cells eventually wear out, you swap them in seconds — not the whole bulb. It’s a smarter, more economical way to handle power cuts for the long term.

Why the F922 Is a Step Above Ordinary Inverter Bulbs

• Replaceable battery — replace cells, not the bulb: Two Li-ion cells (1200mAh each, 2400mAh total) slot in and out in seconds. When capacity eventually drops after years of use, just replace the batteries — not the entire fitting. Lower long-term cost, less electronic waste.
• Switches to battery automatically — zero delay: The moment mains power fails, the F922 switches to battery mode instantly with no flicker and no interruption. The room stays lit as if nothing happened.
• 2000 lumens — seriously bright: At 20W and 2000 lumens with a 200° beam angle, this is a proper room-filling light — not a dim emergency glow. Bright enough to cook, work, read, and carry on normally through any power cut.
• Up to 10 hours of backup: In bright mode you get 5+ hours — enough for most outages. Switch to dim mode and it stretches to 10 hours, comfortably covering overnight cuts without running out.
• 2-step dimming in emergency mode: When on battery, the bulb automatically starts in bright mode for maximum visibility, then dims to extend runtime — simple and effective without any app or remote needed.
• CRI ≥80 for true, natural light: Colours look accurate and natural under this bulb, making it genuinely comfortable for everyday use — not just functional in an emergency.
• Works as a normal bulb when mains power is on: When the grid is running, it’s just a 20W LED bulb. Energy-efficient at ~100 lm/W, no different from any premium LED in your home.
• Hanging hook compatible: An optional hanging hook (available separately) lets you use the F922 as a portable lantern during extended outages — carry it room to room without needing a fitting.

Backup Time at a Glance

• Bright Mode (2000lm): 5+ Hours
• Dim Mode: Up to 10 Hours
• Charging Time (mains on): 6–8 Hours

Specifications

• SKU: F922
• Wattage: 20W
• Lumen Output: 2000 Lumens
• Efficacy: ~100 lm/W
• Colour Temperature: 6500K–7000K (Cool White)
• CRI: ≥80
• Beam Angle: ≈200°
• Battery Type: Removable & Replaceable Li-ion cells
• Battery Quantity: 2 × 1200mAh (Total 2400mAh)
• Charging Time: 6–8 Hours
• Bulb Base: B22 (Bayonet)
• Dimming: 2-Step in Emergency Mode (Bright → Dim)
• Hanging Hook: Compatible (available separately)

What’s in the Box

• 1 × ENER-J F922 20W AI Inverter Bulb (B22)
• 2 × Li-ion Replacement Cells (pre-installed)

A power cut shouldn’t mean sitting in the dark — and a worn-out battery shouldn’t mean buying a whole new bulb. The F922 solves both problems at once. Order yours today and be ready for the next one.