The second head is not about brightness. It is about aiming two ways from one hole in theground. A double Tivah puts two independently adjustable MR16 heads on a single 1000 mm stem,fed by one cable from one driver. On a driveway edge that means washing the drive one way and the gardenbed the other from a single fitting; along a path it means lighting both directions instead ofalternating single fittings down the run. Each head tilts through 90 and swivels through 270, so theygenuinely can be aimed at unrelated things rather than fanned slightly apart.

The number to get right before you buy the driver

Each head carries its own 5 W MR16, so this fitting draws 10 W, not5 W. That matters the moment you put more than one on a run: six doubles is a 60 W load, not 30 W, and adriver chosen on the single-head figure will be undersized. Havit’s sheet writes the output the sameway 2 x 270 lm at 3000K, 2 x 285 lm at 4000K and 2 x 300 lm at 5500K, which is 540,570 or 600 lm across the fitting. Both sockets are rated to 20 W each, and the heads arewired in parallel, so one globe failing does not take the other with it.

Solid brass, and Havit says it will change

The body is solid brass and the datasheet records the colour as brass that will ageover time. Unlacquered, it darkens outdoors from bright yellow through gold to a deep warm brown fastin the first season, slowly after that. Because the colour lives in the metal rather than in a coating,a scratch weathers back in rather than exposing something else underneath. That is the argument forsolid brass and the reason not to buy it expecting it to stay bright.

Globes, colour and the conditions on the warranty

• Both globes are tri-colour and each is set independently at the globe cover offanti-clockwise, glass out, switch on the side. Preset to 3000K. Set both the same unless you want twodifferent colours from one fitting, which is rarely what anyone means to do.
• The beam belongs to the globes, not the housing. The supplied tri-colour MR16s are120 floods; narrower MR16s make the same fitting a pair of spots.
• 12 V DC from a suitable 12 V DC LED driver; do not connect the fitting directly to240 V.
• No more than 25 m from the driver, supply within 5% of 12 V. Bothare warranty conditions, and the second one is easier to breach on a long run feeding 10 W fittings.
• Not dimmable. 2 m of reinforced cable, joints soldered and sealed.Do not force either head past its stop the internal cable twists and shorts, and that is excluded.

IP65, IK08, protection class 3, CRI above 80, and a 3-year replacement warranty.

If you are working out how many of these one driver will carry, send Lights For You the layout the10 W figure and the 25 m limit together decide the answer, and they are the two things most often gotwrong.

Questions

Does it draw 5 W or 10 W?

10 W. Each of the two heads takes its own 5 W MR16 globe, and Havit’s specification records the lamp wattage for this model as 2 x 5 W. Size the driver on 10 W per fitting a run of six is 60 W, not 30 W, and that is the mistake worth avoiding at the planning stage.

How much light does it actually produce?

Per head, 270 lm at 3000K, 285 lm at 4000K and 300 lm at 5500K so across both heads, 540, 570 or 600 lm. Havit prints it as 2 x 270 lm and so on, which is the honest way to read it, since the two heads are usually pointed at different things.

Can the two heads be aimed independently?

Yes. Each has its own 90 tilt and 270 swivel, so they can face genuinely different directions rather than only fanning apart. Stop at the mechanical limit in each direction forcing past it tangles the internal cable and shorts the fitting, and that damage is excluded from warranty.

Can the two heads run different colour temperatures?

Physically yes, since each tri-colour globe has its own switch, but it is almost never what you want the two beams overlap and the mismatch is obvious. Set both to the same value unless you are deliberately lighting two unrelated surfaces.

Will the brass stay bright?

No, and the datasheet says as much: the colour is described as brass that will age over time. Outdoors it moves to a deep warm brown, quickest in the first months. Since it is solid rather than plated, the change happens in the metal and marks blend back in over time.

Is it dimmable?

No. Both sheets covering this fitting record it as not dimmable, so it should not be specified into a dimmed circuit.

How far can it sit from the driver?

25 m, with the supply held within 5% of 12 V Havit states both as warranty conditions. At 10 W per fitting those limits arrive sooner than people expect on a long garden run, so plan the driver position rather than assuming one at the switchboard will do.