BenQ ScreenBar Halo 2 vs ScreenBar Pro

Buy the ScreenBar Pro. It publishes the same light on your desk as the Halo 2 — the same center illuminance, the same coverage area — at 8.5W instead of 15W and for less money. Buy the Halo 2only if you want the rear backlight or the wireless controller, because on BenQ’s own figures those are the two things the premium buys.

The finding: BenQ publishes the same light twice

Put the two spec tables side by side and the comparison resolves itself. For both bars, BenQ publishes >1000 lux of center illuminance measured at 50 cm, and an 85 × 50 cm area covered at 500 lux. Those are the figures that describe light reaching your keyboard, your notebook and your hands.

The Halo 2 draws up to 15W. The Pro draws up to 8.5W. Nearly twice the power for the same published output on the desk, which is only a paradox until you notice where the extra watts go: into the strip pointing at the wall behind your monitor.

This matters because the model names say the opposite. “Halo 2” against “Pro” reads like a straight upgrade, and the price supports that reading. The spec tables do not. It is the same pattern we found on Ergotron’s LX and LX Pro, where the “Pro” holds three pounds less.

What the extra money does buy

Three things, and they are real.

The backlight.A rear-facing strip, which is bias lighting integrated into the fitting. That solves a genuinely different problem from the front light — screen-against-dark-wall rather than screen-against-dark-desk — and our comparison of the two is the page to read before deciding you want it.

The wireless controller. A puck on the desk instead of touch pads on the bar. Small, and genuinely better: a touch control on a bar clipped to the top of a monitor is a reach over everything on the desk.

An Rf≥96 figure.The Halo 2 publishes a TM-30 fidelity index alongside the Ra≥95 both bars quote. It is a more modern color measure than CRI, as our CRI page explains, and it is the only published color difference between the two.

The asymmetry worth knowing about

Both bars appear with a 50,000-hour rated life in our Spec Lines, and that figure needs a caveat that neither product page gives it. It comes from a blanket BenQ FAQ which lists the models it applies to. The Pro is on that list. The Halo 2 is not, and the Halo 2’s own spec page does not carry the number.

We are not going to turn that into an accusation — a newer model missing from an older FAQ is the most boring explanation and probably the right one. But it is the kind of thing a buyer is entitled to notice, especially since neither figure cites a standard: no L70 threshold, no LM-80 test, nothing. Compare that with the lamp at the top of our desk lamp roundup, which publishes an L70 figure, and you can see what a properly specified rated life looks like.

The warranty is the other number to read: one year in the US, on both, which is the shortest term on anything we rank in this hub.

What we can’t tell you

We have not used either bar. We cannot tell you whether the Halo 2’s presence detection is helpful or irritating, whether the backlight is bright enough for your wall color, how either one clips onto your specific monitor bezel, or whether either is still working in year six of a 50,000-hour claim. Those need the objects and time. Our methodologyis explicit that this page is a reading of two spec tables — which is exactly the comparison the model names make hard to do yourself.